7n+9=3-9n

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


Simplifying
7n + 9 = 3 + -9n

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

Solving
9 + 7n = 3 + -9n

Solving for variable 'n'.

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

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

Combine like terms: 7n + 9n = 16n
9 + 16n = 3 + -9n + 9n

Combine like terms: -9n + 9n = 0
9 + 16n = 3 + 0
9 + 16n = 3

Add '-9' to each side of the equation.
9 + -9 + 16n = 3 + -9

Combine like terms: 9 + -9 = 0
0 + 16n = 3 + -9
16n = 3 + -9

Combine like terms: 3 + -9 = -6
16n = -6

Divide each side by '16'.
n = -0.375

Simplifying
n = -0.375

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