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1/2(-6a+11)=-23
We simplify the equation to the form, which is simple to understand
1/2(-6a+11)=-23
Reorder the terms in parentheses
+(-3a+5.5)=-23
Remove unnecessary parentheses
-3a+5.5=-23
We move all terms containing a to the left and all other terms to the right.
-3a=-23-5.5
We simplify left and right side of the equation.
-3a=-28.5
We divide both sides of the equation by -3 to get a.
a=9.5
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