x+30=2x+9

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Solution for x+30=2x+9 equation:



x+30=2x+9
We move all terms to the left:
x+30-(2x+9)=0
We get rid of parentheses
x-2x-9+30=0
We add all the numbers together, and all the variables
-1x+21=0
We move all terms containing x to the left, all other terms to the right
-x=-21
x=-21/-1
x=+21

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