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0.5x-0.9(3-x)=0.8
We simplify the equation to the form, which is simple to understand
0.5x-0.9(3-x)=0.8
Reorder the terms in parentheses
0.5x+(-2.7 + 0.9x)=0.8
Remove unnecessary parentheses
+ 0.5x-2.7 + 0.9x=0.8
We move all terms containing x to the left and all other terms to the right.
+ 0.5x + 0.9x=0.8+2.7
We simplify left and right side of the equation.
+1.4x=+3.5
We divide both sides of the equation by 1.4 to get x.
x=2.5
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