3n+6=n+20

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Solution for 3n+6=n+20 equation:


Simplifying
3n + 6 = n + 20

Reorder the terms:
6 + 3n = n + 20

Reorder the terms:
6 + 3n = 20 + n

Solving
6 + 3n = 20 + 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.
6 + 3n + -1n = 20 + n + -1n

Combine like terms: 3n + -1n = 2n
6 + 2n = 20 + n + -1n

Combine like terms: n + -1n = 0
6 + 2n = 20 + 0
6 + 2n = 20

Add '-6' to each side of the equation.
6 + -6 + 2n = 20 + -6

Combine like terms: 6 + -6 = 0
0 + 2n = 20 + -6
2n = 20 + -6

Combine like terms: 20 + -6 = 14
2n = 14

Divide each side by '2'.
n = 7

Simplifying
n = 7

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