n-3n=13-4

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Solution for n-3n=13-4 equation: 


Simplifying
n + -3n = 13 + -4

Combine like terms: n + -3n = -2n
-2n = 13 + -4

Combine like terms: 13 + -4 = 9
-2n = 9

Solving
-2n = 9

Solving for variable 'n'.

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

Divide each side by '-2'.
n = -4.5

Simplifying
n = -4.5

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