7-n+2n=4

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


Simplifying
7 + -1n + 2n = 4

Combine like terms: -1n + 2n = 1n
7 + 1n = 4

Solving
7 + 1n = 4

Solving for variable 'n'.

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

Add '-7' to each side of the equation.
7 + -7 + 1n = 4 + -7

Combine like terms: 7 + -7 = 0
0 + 1n = 4 + -7
1n = 4 + -7

Combine like terms: 4 + -7 = -3
1n = -3

Divide each side by '1'.
n = -3

Simplifying
n = -3

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