n+7=3n-7

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


Simplifying
n + 7 = 3n + -7

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

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

Solving
7 + n = -7 + 3n

Solving for variable 'n'.

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

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

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

Combine like terms: 3n + -3n = 0
7 + -2n = -7 + 0
7 + -2n = -7

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

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

Combine like terms: -7 + -7 = -14
-2n = -14

Divide each side by '-2'.
n = 7

Simplifying
n = 7

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