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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