3x+7=(x-8)

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Solution for 3x+7=(x-8) equation: 



3x+7=(x-8)

We move all terms to the left:

3x+7-((x-8))=0



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

(x-8)

We get rid of parentheses

x-8

Back to the equation:

-(x-8)



We get rid of parentheses

3x-x+8+7=0

We add all the numbers together, and all the variables

2x+15=0

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

2x=-15

x=-15/2

x=-7+1/2

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