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-31+7x/3+3x=11
We move all terms to the left:
-31+7x/3+3x-(11)=0
We add all the numbers together, and all the variables
3x+7x/3-42=0
We multiply all the terms by the denominator
3x*3+7x-42*3=0
We add all the numbers together, and all the variables
7x+3x*3-126=0
Wy multiply elements
7x+9x-126=0
We add all the numbers together, and all the variables
16x-126=0
We move all terms containing x to the left, all other terms to the right
16x=126
x=126/16
x=7+7/8
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