X+3x-15=27+2x

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Solution for X+3x-15=27+2x equation:



X+3X-15=27+2X
We move all terms to the left:
X+3X-15-(27+2X)=0
We add all the numbers together, and all the variables
X+3X-(2X+27)-15=0
We add all the numbers together, and all the variables
4X-(2X+27)-15=0
We get rid of parentheses
4X-2X-27-15=0
We add all the numbers together, and all the variables
2X-42=0
We move all terms containing X to the left, all other terms to the right
2X=42
X=42/2
X=21

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