9n-8=2n+13

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Solution for 9n-8=2n+13 equation:


Simplifying
9n + -8 = 2n + 13

Reorder the terms:
-8 + 9n = 2n + 13

Reorder the terms:
-8 + 9n = 13 + 2n

Solving
-8 + 9n = 13 + 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.
-8 + 9n + -2n = 13 + 2n + -2n

Combine like terms: 9n + -2n = 7n
-8 + 7n = 13 + 2n + -2n

Combine like terms: 2n + -2n = 0
-8 + 7n = 13 + 0
-8 + 7n = 13

Add '8' to each side of the equation.
-8 + 8 + 7n = 13 + 8

Combine like terms: -8 + 8 = 0
0 + 7n = 13 + 8
7n = 13 + 8

Combine like terms: 13 + 8 = 21
7n = 21

Divide each side by '7'.
n = 3

Simplifying
n = 3

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