-7=1+a-3

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Solution for -7=1+a-3 equation:


-7=1+a-3

We simplify the equation to the form, which is simple to understand 
-7=1+a-3

We move all terms containing a to the left and all other terms to the right. 
-1a=+1-3+7

We simplify left and right side of the equation. 
-1a=+5

We divide both sides of the equation by -01 to get a. 
a=-5

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