x+2x+15=150

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Solution for x+2x+15=150 equation: 



x+2x+15=150

We move all terms to the left:

x+2x+15-(150)=0

We add all the numbers together, and all the variables

3x-135=0

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

3x=135

x=135/3

x=45

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