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15x+20x=415
We simplify the equation to the form, which is simple to understand
15x+20x=415
We move all terms containing x to the left and all other terms to the right.
+15x+20x=+415
We simplify left and right side of the equation.
+35x=+415
We divide both sides of the equation by 35 to get x.
x=11.8571428571
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