6z+2z=7z-7

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Solution for 6z+2z=7z-7 equation: 



6z+2z=7z-7

We move all terms to the left:

6z+2z-(7z-7)=0

We add all the numbers together, and all the variables

8z-(7z-7)=0

We get rid of parentheses

8z-7z+7=0

We add all the numbers together, and all the variables

z+7=0

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

z=-7

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