9-2n=7+5n-12

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Solution for 9-2n=7+5n-12 equation:


Simplifying
9 + -2n = 7 + 5n + -12

Reorder the terms:
9 + -2n = 7 + -12 + 5n

Combine like terms: 7 + -12 = -5
9 + -2n = -5 + 5n

Solving
9 + -2n = -5 + 5n

Solving for variable 'n'.

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

Add '-5n' to each side of the equation.
9 + -2n + -5n = -5 + 5n + -5n

Combine like terms: -2n + -5n = -7n
9 + -7n = -5 + 5n + -5n

Combine like terms: 5n + -5n = 0
9 + -7n = -5 + 0
9 + -7n = -5

Add '-9' to each side of the equation.
9 + -9 + -7n = -5 + -9

Combine like terms: 9 + -9 = 0
0 + -7n = -5 + -9
-7n = -5 + -9

Combine like terms: -5 + -9 = -14
-7n = -14

Divide each side by '-7'.
n = 2

Simplifying
n = 2

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