63=-7(6z-9)+42z

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Solution for 63=-7(6z-9)+42z equation: 



63=-7(6z-9)+42z

We move all terms to the left:

63-(-7(6z-9)+42z)=0



We calculate terms in parentheses: -(-7(6z-9)+42z), so:

-7(6z-9)+42z

We add all the numbers together, and all the variables

42z-7(6z-9)

We multiply parentheses

42z-42z+63

We add all the numbers together, and all the variables

63

Back to the equation:

-(63)



We add all the numbers together, and all the variables

=0

z=0/1

z=0

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