9z+8=4z-7z

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Solution for 9z+8=4z-7z equation: 



9z+8=4z-7z

We move all terms to the left:

9z+8-(4z-7z)=0

We add all the numbers together, and all the variables

9z-(-3z)+8=0

We get rid of parentheses

9z+3z+8=0

We add all the numbers together, and all the variables

12z+8=0

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

12z=-8

z=-8/12

z=-2/3

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