3n-5=n-7

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Solution for 3n-5=n-7 equation:


Simplifying
3n + -5 = n + -7

Reorder the terms:
-5 + 3n = n + -7

Reorder the terms:
-5 + 3n = -7 + n

Solving
-5 + 3n = -7 + 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.
-5 + 3n + -1n = -7 + n + -1n

Combine like terms: 3n + -1n = 2n
-5 + 2n = -7 + n + -1n

Combine like terms: n + -1n = 0
-5 + 2n = -7 + 0
-5 + 2n = -7

Add '5' to each side of the equation.
-5 + 5 + 2n = -7 + 5

Combine like terms: -5 + 5 = 0
0 + 2n = -7 + 5
2n = -7 + 5

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

Divide each side by '2'.
n = -1

Simplifying
n = -1

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