-20=105+72A

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Solution for -20=105+72A equation:


-20=105+72a

We simplify the equation to the form, which is simple to understand 
-20=105+72a

We move all terms containing a to the left and all other terms to the right. 
-72a=+105+20

We simplify left and right side of the equation. 
-72a=+125

We divide both sides of the equation by -072 to get a. 
a=-1.7361111111111

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