-6(7-5z)=21

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Solution for -6(7-5z)=21 equation: 



-6(7-5z)=21

We move all terms to the left:

-6(7-5z)-(21)=0

We add all the numbers together, and all the variables

-6(-5z+7)-21=0

We multiply parentheses

30z-42-21=0

We add all the numbers together, and all the variables

30z-63=0

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

30z=63

z=63/30

z=2+1/10

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