15a-a=-4

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Solution for 15a-a=-4 equation:


15a-a=-4

We simplify the equation to the form, which is simple to understand 
15a-a=-4

We move all terms containing a to the left and all other terms to the right. 
+15a-1a=-4

We simplify left and right side of the equation. 
+14a=-4

We divide both sides of the equation by 14 to get a. 
a=-0.28571428571429

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