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3x+31=13-19
We move all terms to the left:
3x+31-(13-19)=0
We add all the numbers together, and all the variables
3x+31-(-6)=0
We add all the numbers together, and all the variables
3x+37=0
We move all terms containing x to the left, all other terms to the right
3x=-37
x=-37/3
x=-12+1/3
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