72=-8(4a-5)

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Solution for 72=-8(4a-5) equation:


72=-8(4a-5)

We simplify the equation to the form, which is simple to understand 
72=-8(4a-5)

Reorder the terms in parentheses
72=+(-32a+40)

Remove unnecessary parentheses
+72=-32a+40

We move all terms containing a to the left and all other terms to the right. 
+32a=+40-72

We simplify left and right side of the equation. 
+32a=-32

We divide both sides of the equation by 032 to get a. 
a=-1

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