12+-7n=2n+30

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Solution for 12+-7n=2n+30 equation:


Simplifying
12 + -7n = 2n + 30

Reorder the terms:
12 + -7n = 30 + 2n

Solving
12 + -7n = 30 + 2n

Solving for variable 'n'.

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

Add '-2n' to each side of the equation.
12 + -7n + -2n = 30 + 2n + -2n

Combine like terms: -7n + -2n = -9n
12 + -9n = 30 + 2n + -2n

Combine like terms: 2n + -2n = 0
12 + -9n = 30 + 0
12 + -9n = 30

Add '-12' to each side of the equation.
12 + -12 + -9n = 30 + -12

Combine like terms: 12 + -12 = 0
0 + -9n = 30 + -12
-9n = 30 + -12

Combine like terms: 30 + -12 = 18
-9n = 18

Divide each side by '-9'.
n = -2

Simplifying
n = -2

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