2(7z+3)=90

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Solution for 2(7z+3)=90 equation: 



2(7z+3)=90

We move all terms to the left:

2(7z+3)-(90)=0

We multiply parentheses

14z+6-90=0

We add all the numbers together, and all the variables

14z-84=0

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

14z=84

z=84/14

z=6

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