-20=n-(-7)

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Solution for -20=n-(-7) equation:


-20=n-(-7)

We simplify the equation to the form, which is simple to understand 
-20=n-(-7)

Remove unnecessary parentheses
-20=n+7

We move all terms containing n to the left and all other terms to the right. 
-1n=+7+20

We simplify left and right side of the equation. 
-1n=+27

We divide both sides of the equation by -01 to get n. 
n=-27

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