21+(15-n)=23

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Solution for 21+(15-n)=23 equation:


21 + (15-n) = 23

We simplify the equation to the form, which is simple to understand 
21+(15-n)=23

Remove unnecessary parentheses
+21+15-n=+23

We move all terms containing n to the left and all other terms to the right. 
-1n=+23-21-15

We simplify left and right side of the equation. 
-1n=-13

We divide both sides of the equation by -1 to get n. 
n=13

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