7z+8=5z+15

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



7z+8=5z+15

We move all terms to the left:

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

We get rid of parentheses

7z-5z-15+8=0

We add all the numbers together, and all the variables

2z-7=0

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

2z=7

z=7/2

z=3+1/2

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