28=a+13

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Solution for 28=a+13 equation:


28=a+13

We simplify the equation to the form, which is simple to understand 
28=a+13

We move all terms containing a to the left and all other terms to the right. 
-1a=+13-28

We simplify left and right side of the equation. 
-1a=-15

We divide both sides of the equation by -01 to get a. 
a=15

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