15-a=13

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Solution for 15-a=13 equation:


15-a=13

We simplify the equation to the form, which is simple to understand 
15-a=13

We move all terms containing a to the left and all other terms to the right. 
-1a=+13-15

We simplify left and right side of the equation. 
-1a=-2

We divide both sides of the equation by -1 to get a. 
a=2

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