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15=a/2-2
We simplify the equation to the form, which is simple to understand
15=a/2-2
Simplifying:
15=0.5a-2
We move all terms containing a to the left and all other terms to the right.
-0.5a=-2-15
We simplify left and right side of the equation.
-0.5a=-17
We divide both sides of the equation by -00.5 to get a.
a=34
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