-1/4a+7/4a=-21

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Solution for -1/4a+7/4a=-21 equation:


-1/4a+7/4a=-21

We simplify the equation to the form, which is simple to understand 
-1/4a+7/4a=-21

We move all terms containing a to the left and all other terms to the right. 
+4a+4a=-21

We simplify left and right side of the equation. 
+8a=-21

We divide both sides of the equation by 8 to get a. 
a=-2.625

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