87=-3(4a-5)

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Solution for 87=-3(4a-5) equation:


87=-3(4a-5)

We simplify the equation to the form, which is simple to understand 
87=-3(4a-5)

Reorder the terms in parentheses
87=+(-12a+15)

Remove unnecessary parentheses
+87=-12a+15

We move all terms containing a to the left and all other terms to the right. 
+12a=+15-87

We simplify left and right side of the equation. 
+12a=-72

We divide both sides of the equation by 012 to get a. 
a=-6

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