7(2.5)+12(7)-5(3)=

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Solution for 7(2.5)+12(7)-5(3)= equation:


7(2.5)+12(7)-5(3)=0

We simplify the equation to the form, which is simple to understand 
7(2.5)+12(7)-5(3)=0

Reorder the terms in parentheses
+(+17.5)+12*(7)-5*(3)=0

Remove unnecessary parentheses
+17.5+12+*(+7+)-5+*(+3+)=0

Reorder the terms in parentheses
+17.5+(+84)-5*(3)=0

Remove unnecessary parentheses
+17.5+84-5+*(+3+)=0

Reorder the terms in parentheses
+17.5+84+(-15)=0

Remove unnecessary parentheses
+17.5+84-15=0

We move all terms containing  to the left and all other terms to the right. 
0=0-17.5-84+15

We simplify left and right side of the equation. 
0=-86.5

0=-86.5

The left and right sides are not equal, therefore there is no solution. This equation is invalid.

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