2z+10=7z-20

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Solution for 2z+10=7z-20 equation: 



2z+10=7z-20

We move all terms to the left:

2z+10-(7z-20)=0

We get rid of parentheses

2z-7z+20+10=0

We add all the numbers together, and all the variables

-5z+30=0

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

-5z=-30

z=-30/-5

z=+6

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