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3x+15=-2+30
We move all terms to the left:
3x+15-(-2+30)=0
We add all the numbers together, and all the variables
3x+15-28=0
We add all the numbers together, and all the variables
3x-13=0
We move all terms containing x to the left, all other terms to the right
3x=13
x=13/3
x=4+1/3
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