28=-2+6(a+7)

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Solution for 28=-2+6(a+7) equation:


28=-2+6(a+7)

We simplify the equation to the form, which is simple to understand 
28=-2+6(a+7)

Reorder the terms in parentheses
28=-2+(+6a+42)

Remove unnecessary parentheses
+28=-2+6a+42

We move all terms containing a to the left and all other terms to the right. 
-6a=-2+42-28

We simplify left and right side of the equation. 
-6a=+12

We divide both sides of the equation by -06 to get a. 
a=-2

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