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12x+x+15=53
We simplify the equation to the form, which is simple to understand
12x+x+15=53
We move all terms containing x to the left and all other terms to the right.
+12x+1x=+53-15
We simplify left and right side of the equation.
+13x=+38
We divide both sides of the equation by 13 to get x.
x=2.92307692308
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