0.7(220-a)=140

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Solution for 0.7(220-a)=140 equation:


0.7(220-a)=140

We simplify the equation to the form, which is simple to understand 
0.7(220-a)=140

Reorder the terms in parentheses
+(+154-0.7a)=140

Remove unnecessary parentheses
+154-0.7a=+140

We move all terms containing a to the left and all other terms to the right. 
-0.7a=+140-154

We simplify left and right side of the equation. 
-0.7a=-14

We divide both sides of the equation by -0.7 to get a. 
a=20

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