30-2n=120

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Solution for 30-2n=120 equation: 


Simplifying
30 + -2n = 120

Solving
30 + -2n = 120

Solving for variable 'n'.

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

Add '-30' to each side of the equation.
30 + -30 + -2n = 120 + -30

Combine like terms: 30 + -30 = 0
0 + -2n = 120 + -30
-2n = 120 + -30

Combine like terms: 120 + -30 = 90
-2n = 90

Divide each side by '-2'.
n = -45

Simplifying
n = -45

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