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0.40x-0.20(50+x)=0.12(50)
We simplify the equation to the form, which is simple to understand
0.40x-0.20(50+x)=0.12(50)
Reorder the terms in parentheses
0.40x+(-10-0.2x)=0.12*(50)
Remove unnecessary parentheses
+ 0.40x-10-0.2x=0.12+*(+50+)
Reorder the terms in parentheses
0.40x-10-0.2x=+(+6)
Remove unnecessary parentheses
+ 0.40x-10-0.2x=+6
We move all terms containing x to the left and all other terms to the right.
+ 0.4x-0.2x=+6+10
We simplify left and right side of the equation.
+ 0.2x=+16
We divide both sides of the equation by 0.2 to get x.
x=80
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