-3n-7n=-20

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Solution for -3n-7n=-20 equation: 


Simplifying
-3n + -7n = -20

Combine like terms: -3n + -7n = -10n
-10n = -20

Solving
-10n = -20

Solving for variable 'n'.

Move all terms containing n to the left, all other terms to the right.

Divide each side by '-10'.
n = 2

Simplifying
n = 2

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