3=7n-9-5n

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Solution for 3=7n-9-5n equation:


Simplifying
3 = 7n + -9 + -5n

Reorder the terms:
3 = -9 + 7n + -5n

Combine like terms: 7n + -5n = 2n
3 = -9 + 2n

Solving
3 = -9 + 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.
3 + -2n = -9 + 2n + -2n

Combine like terms: 2n + -2n = 0
3 + -2n = -9 + 0
3 + -2n = -9

Add '-3' to each side of the equation.
3 + -3 + -2n = -9 + -3

Combine like terms: 3 + -3 = 0
0 + -2n = -9 + -3
-2n = -9 + -3

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

Divide each side by '-2'.
n = 6

Simplifying
n = 6

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