-13=9+2n

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Solution for -13=9+2n equation:


Simplifying
-13 = 9 + 2n

Solving
-13 = 9 + 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 = 9 + 2n + -2n

Combine like terms: 2n + -2n = 0
-13 + -2n = 9 + 0
-13 + -2n = 9

Add '13' to each side of the equation.
-13 + 13 + -2n = 9 + 13

Combine like terms: -13 + 13 = 0
0 + -2n = 9 + 13
-2n = 9 + 13

Combine like terms: 9 + 13 = 22
-2n = 22

Divide each side by '-2'.
n = -11

Simplifying
n = -11

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