-42=7(8-7x)

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Solution for -42=7(8-7x) equation: 



-42=7(8-7x)

We move all terms to the left:

-42-(7(8-7x))=0

We add all the numbers together, and all the variables

-(7(-7x+8))-42=0



We calculate terms in parentheses: -(7(-7x+8)), so:

7(-7x+8)

We multiply parentheses

-49x+56

Back to the equation:

-(-49x+56)



We get rid of parentheses

49x-56-42=0

We add all the numbers together, and all the variables

49x-98=0

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

49x=98

x=98/49

x=2

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