15=7n-2n

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Solution for 15=7n-2n equation:


Simplifying
15 = 7n + -2n

Combine like terms: 7n + -2n = 5n
15 = 5n

Solving
15 = 5n

Solving for variable 'n'.

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

Add '-5n' to each side of the equation.
15 + -5n = 5n + -5n

Combine like terms: 5n + -5n = 0
15 + -5n = 0

Add '-15' to each side of the equation.
15 + -15 + -5n = 0 + -15

Combine like terms: 15 + -15 = 0
0 + -5n = 0 + -15
-5n = 0 + -15

Combine like terms: 0 + -15 = -15
-5n = -15

Divide each side by '-5'.
n = 3

Simplifying
n = 3

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