84=-5a-4(2a+5)

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Solution for 84=-5a-4(2a+5) equation:


84=-5a-4(2a+5)

We simplify the equation to the form, which is simple to understand 
84=-5a-4(2a+5)

Reorder the terms in parentheses
84=-5a+(-8a-20)

Remove unnecessary parentheses
+84=-5a-8a-20

We move all terms containing a to the left and all other terms to the right. 
+5a+8a=-20-84

We simplify left and right side of the equation. 
+13a=-104

We divide both sides of the equation by 13 to get a. 
a=-8

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