13=2n+7

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Solution for 13=2n+7 equation:


Simplifying
13 = 2n + 7

Reorder the terms:
13 = 7 + 2n

Solving
13 = 7 + 2n

Solving for variable 'n'.

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

Add '-2n' to each side of the equation.
13 + -2n = 7 + 2n + -2n

Combine like terms: 2n + -2n = 0
13 + -2n = 7 + 0
13 + -2n = 7

Add '-13' to each side of the equation.
13 + -13 + -2n = 7 + -13

Combine like terms: 13 + -13 = 0
0 + -2n = 7 + -13
-2n = 7 + -13

Combine like terms: 7 + -13 = -6
-2n = -6

Divide each side by '-2'.
n = 3

Simplifying
n = 3

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