7z+2+5z+8=70

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Solution for 7z+2+5z+8=70 equation: 



7z+2+5z+8=70

We move all terms to the left:

7z+2+5z+8-(70)=0

We add all the numbers together, and all the variables

12z-60=0

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

12z=60

z=60/12

z=5

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