42=-3(x-3)

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Solution for 42=-3(x-3) equation: 



42=-3(x-3)

We move all terms to the left:

42-(-3(x-3))=0



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

-3(x-3)

We multiply parentheses

-3x+9

Back to the equation:

-(-3x+9)



We get rid of parentheses

3x-9+42=0

We add all the numbers together, and all the variables

3x+33=0

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

3x=-33

x=-33/3

x=-11

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