7x-3+2x=(-x)+87

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Solution for 7x-3+2x=(-x)+87 equation: 



7x-3+2x=(-x)+87

We move all terms to the left:

7x-3+2x-((-x)+87)=0

We add all the numbers together, and all the variables

7x+2x-((-1x)+87)-3=0

We add all the numbers together, and all the variables

9x-((-1x)+87)-3=0



We calculate terms in parentheses: -((-1x)+87), so:

(-1x)+87

We get rid of parentheses

-1x+87

Back to the equation:

-(-1x+87)



We get rid of parentheses

9x+1x-87-3=0

We add all the numbers together, and all the variables

10x-90=0

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

10x=90

x=90/10

x=9

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