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1/2*(9+3)+4=0
We simplify the equation to the form, which is simple to understand
1/2*(9+3)+4=0
Simplifying:
+ 0.5*(9+3)+4=0
Simplifying terms in parentheses
+ 0.5*(+12)+4=0
Reorder the terms in parentheses
+(+6)+4=0
Remove unnecessary parentheses
+6+4=0
We move all terms containing to the left and all other terms to the right.
0=0-6-4
We simplify left and right side of the equation.
0=-10
0=-10
The left and right sides are not equal, therefore there is no solution. This equation is invalid.
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