2x+4(30-x)=84

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Solution for 2x+4(30-x)=84 equation: 



2x+4(30-x)=84

We move all terms to the left:

2x+4(30-x)-(84)=0

We add all the numbers together, and all the variables

2x+4(-1x+30)-84=0

We multiply parentheses

2x-4x+120-84=0

We add all the numbers together, and all the variables

-2x+36=0

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

-2x=-36

x=-36/-2

x=+18

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