(7a-a)-2=40

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Solution for (7a-a)-2=40 equation:


(7a-a)-2=40

We simplify the equation to the form, which is simple to understand 
(7a-a)-2=40

Remove unnecessary parentheses
+6a-2=40

We move all terms containing a to the left and all other terms to the right. 
+6a=+40+2

We simplify left and right side of the equation. 
+6a=+42

We divide both sides of the equation by 6 to get a. 
a=7

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