-42=7(5+x)

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Solution for -42=7(5+x) equation: 



-42=7(5+x)

We move all terms to the left:

-42-(7(5+x))=0

We add all the numbers together, and all the variables

-(7(x+5))-42=0



We calculate terms in parentheses: -(7(x+5)), so:

7(x+5)

We multiply parentheses

7x+35

Back to the equation:

-(7x+35)



We get rid of parentheses

-7x-35-42=0

We add all the numbers together, and all the variables

-7x-77=0

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

-7x=77

x=77/-7

x=-11

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