-3n+n-9=20+7

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Solution for -3n+n-9=20+7 equation:


Simplifying
-3n + n + -9 = 20 + 7

Reorder the terms:
-9 + -3n + n = 20 + 7

Combine like terms: -3n + n = -2n
-9 + -2n = 20 + 7

Combine like terms: 20 + 7 = 27
-9 + -2n = 27

Solving
-9 + -2n = 27

Solving for variable 'n'.

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

Add '9' to each side of the equation.
-9 + 9 + -2n = 27 + 9

Combine like terms: -9 + 9 = 0
0 + -2n = 27 + 9
-2n = 27 + 9

Combine like terms: 27 + 9 = 36
-2n = 36

Divide each side by '-2'.
n = -18

Simplifying
n = -18

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