x*1+(50-x)*(-3)=18

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Solution for x*1+(50-x)*(-3)=18 equation:


x*1+(50-x)*(-3)=18

We simplify the equation to the form, which is simple to understand 
x*1+(50-x)*(-3)=18

Simplifying:
+1x+(50-x)*(-3)=18

Reorder the terms in parentheses
multiplication of parentheses
+1x+(-150+3x)=18



Remove unnecessary parentheses
+1x-150+3x=+18

We move all terms containing x to the left and all other terms to the right. 
+1x+3x=+18+150

We simplify left and right side of the equation. 
+4x=+168

We divide both sides of the equation by 4 to get x. 
x=42

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