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30x+1500+20x=0
We simplify the equation to the form, which is simple to understand
30x+1500+20x=0
We move all terms containing x to the left and all other terms to the right.
+30x+20x=0-1500
We simplify left and right side of the equation.
+50x=-1500
We divide both sides of the equation by 50 to get x.
x=-30
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