10n+13-9n-15=7

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Solution for 10n+13-9n-15=7 equation:


Simplifying
10n + 13 + -9n + -15 = 7

Reorder the terms:
13 + -15 + 10n + -9n = 7

Combine like terms: 13 + -15 = -2
-2 + 10n + -9n = 7

Combine like terms: 10n + -9n = 1n
-2 + 1n = 7

Solving
-2 + 1n = 7

Solving for variable 'n'.

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

Add '2' to each side of the equation.
-2 + 2 + 1n = 7 + 2

Combine like terms: -2 + 2 = 0
0 + 1n = 7 + 2
1n = 7 + 2

Combine like terms: 7 + 2 = 9
1n = 9

Divide each side by '1'.
n = 9

Simplifying
n = 9

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