7+2z=-15

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Solution for 7+2z=-15 equation: 



7+2z=-15

We move all terms to the left:

7+2z-(-15)=0

We add all the numbers together, and all the variables

2z+22=0

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

2z=-22

z=-22/2

z=-11

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