42=-3(1-x)+5(x+1)

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Solution for 42=-3(1-x)+5(x+1) equation: 



42=-3(1-x)+5(x+1)

We move all terms to the left:

42-(-3(1-x)+5(x+1))=0

We add all the numbers together, and all the variables

-(-3(-1x+1)+5(x+1))+42=0



We calculate terms in parentheses: -(-3(-1x+1)+5(x+1)), so:

-3(-1x+1)+5(x+1)

We multiply parentheses

3x+5x-3+5

We add all the numbers together, and all the variables

8x+2

Back to the equation:

-(8x+2)



We get rid of parentheses

-8x-2+42=0

We add all the numbers together, and all the variables

-8x+40=0

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

-8x=-40

x=-40/-8

x=+5

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