7+2n=7n+9-2n

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


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

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

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

Solving
7 + 2n = 9 + 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.
7 + 2n + -5n = 9 + 5n + -5n

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

Combine like terms: 5n + -5n = 0
7 + -3n = 9 + 0
7 + -3n = 9

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

Combine like terms: 7 + -7 = 0
0 + -3n = 9 + -7
-3n = 9 + -7

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

Divide each side by '-3'.
n = -0.6666666667

Simplifying
n = -0.6666666667

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