z+7=10z-2

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Solution for z+7=10z-2 equation: 



z+7=10z-2

We move all terms to the left:

z+7-(10z-2)=0

We get rid of parentheses

z-10z+2+7=0

We add all the numbers together, and all the variables

-9z+9=0

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

-9z=-9

z=-9/-9

z=1

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