-4z+7=-11z-21

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Solution for -4z+7=-11z-21 equation: 



-4z+7=-11z-21

We move all terms to the left:

-4z+7-(-11z-21)=0

We get rid of parentheses

-4z+11z+21+7=0

We add all the numbers together, and all the variables

7z+28=0

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

7z=-28

z=-28/7

z=-4

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