algebra and symbols in algebra are like

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a foreign language they all mean

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something and can be translated back and

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forth here are a few symbols you should

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know an expression is any combination of

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values and operations that can be used

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to show how things belong together and

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compare to one another here's an example

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of an expression a term such as for X Y

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is a grouping of one or more factors

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which could be variables numbers or both

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multiplication is the only thing

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connecting the number with the variables

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addition and subtraction on the other

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hand separate terms from one another for

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example this expression has three terms

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an equation uses a sign to show a

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relationship that two things are equal

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by using an equation tough problems are

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reduced to easier problems and simpler

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answers an operation is an action

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performed upon one or two numbers to

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produce a resulting number operations

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are addition subtraction multiplication

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division square roots and so on a

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variable is a letter that always

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represents a number but it varies until

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it's written in either an equation or

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inequality that's a comparison of two

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values then the fate of the variable is

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set it can be solved for and its value

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becomes the solution of the equation a

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constant is a value or number that never

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changes in an equation it's constantly

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the same the number 5 is a constant

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because it is what it is a variable can

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be constant if it is assigned a definite

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value usually a variable representing a

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constant is one of the first letters in

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the alphabet so in the equation ax

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squared plus bx plus c equals zero a b

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and c are constants and the X is the

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variable the value of x depends on what

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a B and C are assigned to be an exponent

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is a small number written slightly above

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and to the right of a variable or number

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such as 2 in the expression 3 squared

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it's used to show repeated

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multiplication an exponent is also

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called the power of the value

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to simplify means to combine all that

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can be combined cut down on the number

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of terms and put in an

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easy-to-understand form to factor means

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to change two or more terms to just one

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term and to solve means to find the

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answer in algebra it means to figure out

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what the variable stands for