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1/2(x+3)-2/5(x-9)=x+9
We simplify the equation to the form, which is simple to understand
1/2(x+3)-2/5(x-9)=x+9
Simplifying:
+ 0.5*(x+3)-2/5*(x-9)=x+9
Simplifying:
+ 0.5*(x+3)-0.4*(x-9)=x+9
Reorder the terms in parentheses
+( + 0.5x+1.5)-0.4*(x-9)=x+9
Remove unnecessary parentheses
+ 0.5x+1.5-0.4+*(+x-9+)=+x+9
Reorder the terms in parentheses
+ 0.5x+1.5+(-0.4x+3.6)=x+9
Remove unnecessary parentheses
+ 0.5x+1.5-0.4x+3.6=+x+9
We move all terms containing x to the left and all other terms to the right.
+ 0.5x-0.4x-1x=+9-1.5-3.6
We simplify left and right side of the equation.
-0.9x=+3.9
We divide both sides of the equation by -0.9 to get x.
x=-4.33333333333
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