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15+20=2x+2x
We simplify the equation to the form, which is simple to understand
15+20=2x+2x
We move all terms containing x to the left and all other terms to the right.
-2x-2x=-15-20
We simplify left and right side of the equation.
-4x=-35
We divide both sides of the equation by -4 to get x.
x=8.75
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