x+30=3x-

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Solution for x+30=3x- equation: 



x+30=3x-

We move all terms to the left:

x+30-(3x-)=0

We add all the numbers together, and all the variables

x-(+3x)+30=0

We get rid of parentheses

x-3x+30=0

We add all the numbers together, and all the variables

-2x+30=0

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

-2x=-30

x=-30/-2

x=+15

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