a+(a+2)+(a+4)=2(a-3)

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Solution for a+(a+2)+(a+4)=2(a-3) equation:


a+(a+2)+(a+4)=2(a-3)

We simplify the equation to the form, which is simple to understand 
a+(a+2)+(a+4)=2(a-3)

Remove unnecessary parentheses
+a+a+2+(+a+4+)=+2+*(+a-3+)

Remove unnecessary parentheses
+a+a+2+a+4=+2+*(+a-3+)

Reorder the terms in parentheses
aa+2a+4=+(+2a-6)

Remove unnecessary parentheses
+a+a+2+a+4=+2a-6

We move all terms containing a to the left and all other terms to the right. 
+1a+1a+1a-2a=-6-2-4

We simplify left and right side of the equation. 
+1a=-12

We divide both sides of the equation by 1 to get a. 
a=-12

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