7n-2n+4=9

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Solution for 7n-2n+4=9 equation: 


Simplifying
7n + -2n + 4 = 9

Reorder the terms:
4 + 7n + -2n = 9

Combine like terms: 7n + -2n = 5n
4 + 5n = 9

Solving
4 + 5n = 9

Solving for variable 'n'.

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

Add '-4' to each side of the equation.
4 + -4 + 5n = 9 + -4

Combine like terms: 4 + -4 = 0
0 + 5n = 9 + -4
5n = 9 + -4

Combine like terms: 9 + -4 = 5
5n = 5

Divide each side by '5'.
n = 1

Simplifying
n = 1

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