3x+30=5x-10=2x+20

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Solution for 3x+30=5x-10=2x+20 equation: 



3x+30=5x-10=2x+20

We move all terms to the left:

3x+30-(5x-10)=0

We get rid of parentheses

3x-5x+10+30=0

We add all the numbers together, and all the variables

-2x+40=0

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

-2x=-40

x=-40/-2

x=+20

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