3x+4x+30=84+3x-2x

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Solution for 3x+4x+30=84+3x-2x equation: 



3x+4x+30=84+3x-2x

We move all terms to the left:

3x+4x+30-(84+3x-2x)=0

We add all the numbers together, and all the variables

3x+4x-(x+84)+30=0

We add all the numbers together, and all the variables

7x-(x+84)+30=0

We get rid of parentheses

7x-x-84+30=0

We add all the numbers together, and all the variables

6x-54=0

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

6x=54

x=54/6

x=9

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