9=7-n

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Solution for 9=7-n equation:


Simplifying
9 = 7 + -1n

Solving
9 = 7 + -1n

Solving for variable 'n'.

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

Add 'n' to each side of the equation.
9 + n = 7 + -1n + n

Combine like terms: -1n + n = 0
9 + n = 7 + 0
9 + n = 7

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

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

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

Simplifying
n = -2

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