15=8x+(-3x)

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Solution for 15=8x+(-3x) equation: 



15=8x+(-3x)

We move all terms to the left:

15-(8x+(-3x))=0



We calculate terms in parentheses: -(8x+(-3x)), so:

8x+(-3x)

We get rid of parentheses

8x-3x

We add all the numbers together, and all the variables

5x

Back to the equation:

-(5x)



We move all terms containing x to the left, all other terms to the right

-5x=-15

x=-15/-5

x=+3

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