7=-z-2

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Solution for 7=-z-2 equation: 



7=-z-2

We move all terms to the left:

7-(-z-2)=0

We add all the numbers together, and all the variables

-(-1z-2)+7=0

We get rid of parentheses

1z+2+7=0

We add all the numbers together, and all the variables

z+9=0

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

z=-9

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