9n+12=7n-3

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Solution for 9n+12=7n-3 equation:


Simplifying
9n + 12 = 7n + -3

Reorder the terms:
12 + 9n = 7n + -3

Reorder the terms:
12 + 9n = -3 + 7n

Solving
12 + 9n = -3 + 7n

Solving for variable 'n'.

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

Add '-7n' to each side of the equation.
12 + 9n + -7n = -3 + 7n + -7n

Combine like terms: 9n + -7n = 2n
12 + 2n = -3 + 7n + -7n

Combine like terms: 7n + -7n = 0
12 + 2n = -3 + 0
12 + 2n = -3

Add '-12' to each side of the equation.
12 + -12 + 2n = -3 + -12

Combine like terms: 12 + -12 = 0
0 + 2n = -3 + -12
2n = -3 + -12

Combine like terms: -3 + -12 = -15
2n = -15

Divide each side by '2'.
n = -7.5

Simplifying
n = -7.5

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