7-n=n-1

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Solution for 7-n=n-1 equation:


Simplifying
7 + -1n = n + -1

Reorder the terms:
7 + -1n = -1 + n

Solving
7 + -1n = -1 + n

Solving for variable 'n'.

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

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

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

Combine like terms: n + -1n = 0
7 + -2n = -1 + 0
7 + -2n = -1

Add '-7' to each side of the equation.
7 + -7 + -2n = -1 + -7

Combine like terms: 7 + -7 = 0
0 + -2n = -1 + -7
-2n = -1 + -7

Combine like terms: -1 + -7 = -8
-2n = -8

Divide each side by '-2'.
n = 4

Simplifying
n = 4

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