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31=8x-2+3x
We simplify the equation to the form, which is simple to understand
31=8x-2+3x
We move all terms containing x to the left and all other terms to the right.
-8x-3x=-2-31
We simplify left and right side of the equation.
-11x=-33
We divide both sides of the equation by -11 to get x.
x=3
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