-4a-(-a-3)=18

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Solution for -4a-(-a-3)=18 equation:


-4a-(-a-3)=18

We simplify the equation to the form, which is simple to understand 
-4a-(-a-3)=18

Remove unnecessary parentheses
-4a+1a+3=18

We move all terms containing a to the left and all other terms to the right. 
-4a+1a=+18-3

We simplify left and right side of the equation. 
-3a=+15

We divide both sides of the equation by -3 to get a. 
a=-5

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