-(a+3)=-2(2a+1)

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Solution for -(a+3)=-2(2a+1) equation:


-(a+3)=-2(2a+1)

We simplify the equation to the form, which is simple to understand 
-(a+3)=-2(2a+1)

Remove unnecessary parentheses
-1a-3=-2*(2a+1)

Reorder the terms in parentheses
-1a-3=+(-4a-2)

Remove unnecessary parentheses
-1a-3=-4a-2

We move all terms containing a to the left and all other terms to the right. 
-1a+4a=-2+3

We simplify left and right side of the equation. 
+3a=+1

We divide both sides of the equation by 3 to get a. 
a=0.333333333333

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