42=-7(z-3)42

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Solution for 42=-7(z-3)42 equation: 



42=-7(z-3)42

We move all terms to the left:

42-(-7(z-3)42)=0



We calculate terms in parentheses: -(-7(z-3)42), so:

-7(z-3)42

We multiply parentheses

-294z+882

Back to the equation:

-(-294z+882)



We get rid of parentheses

294z-882+42=0

We add all the numbers together, and all the variables

294z-840=0

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

294z=840

z=840/294

z=2+6/7

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