a=12-(1/2)(30)

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Solution for a=12-(1/2)(30) equation:


a=12-(1/2)(30)

We simplify the equation to the form, which is simple to understand 
a=12-(1/2)*(30)

Reorder the terms in parentheses
multiplication of parentheses
a=12-(+15)



Remove unnecessary parentheses
a=12-15

We move all terms containing a to the left and all other terms to the right. 
+1a=+12-15

We simplify left and right side of the equation. 
+1a=-3

We divide both sides of the equation by 1 to get a. 
a=-3

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