7z+8-5=5z+15

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Solution for 7z+8-5=5z+15 equation: 



7z+8-5=5z+15

We move all terms to the left:

7z+8-5-(5z+15)=0

We add all the numbers together, and all the variables

7z-(5z+15)+3=0

We get rid of parentheses

7z-5z-15+3=0

We add all the numbers together, and all the variables

2z-12=0

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

2z=12

z=12/2

z=6

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