x+(x*3)=84

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Solution for x+(x*3)=84 equation: 



x+(x*3)=84

We move all terms to the left:

x+(x*3)-(84)=0

We add all the numbers together, and all the variables

x+(+x*3)-84=0

We get rid of parentheses

x+x*3-84=0

Wy multiply elements

x+3x-84=0

We add all the numbers together, and all the variables

4x-84=0

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

4x=84

x=84/4

x=21

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