x+2x+7=3

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Solution for x+2x+7=3 equation: 



x+2x+7=3

We move all terms to the left:

x+2x+7-(3)=0

We add all the numbers together, and all the variables

3x+4=0

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

3x=-4

x=-4/3

x=-1+1/3

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