3n+7n+15=75

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Solution for 3n+7n+15=75 equation:


Simplifying
3n + 7n + 15 = 75

Reorder the terms:
15 + 3n + 7n = 75

Combine like terms: 3n + 7n = 10n
15 + 10n = 75

Solving
15 + 10n = 75

Solving for variable 'n'.

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

Add '-15' to each side of the equation.
15 + -15 + 10n = 75 + -15

Combine like terms: 15 + -15 = 0
0 + 10n = 75 + -15
10n = 75 + -15

Combine like terms: 75 + -15 = 60
10n = 60

Divide each side by '10'.
n = 6

Simplifying
n = 6

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