f(-2)=-12(-2)-3

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Solution for f(-2)=-12(-2)-3 equation:


f(-2)=-12(-2)-3

We simplify the equation to the form, which is simple to understand 
f(-2)=-12(-2)-3

Reorder the terms in parentheses
+(-2f)=-12*(-2)-3

Remove unnecessary parentheses
-2f=-12+*(-2+)-3

Reorder the terms in parentheses
-2f=+(+24)-3

Remove unnecessary parentheses
-2f=+24-3

We move all terms containing f to the left and all other terms to the right. 
-2f=+24-3

We simplify left and right side of the equation. 
-2f=+21

We divide both sides of the equation by -2 to get f. 
f=-10.5

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