4n+5n+15=4n+7n

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Solution for 4n+5n+15=4n+7n equation:


Simplifying
4n + 5n + 15 = 4n + 7n

Reorder the terms:
15 + 4n + 5n = 4n + 7n

Combine like terms: 4n + 5n = 9n
15 + 9n = 4n + 7n

Combine like terms: 4n + 7n = 11n
15 + 9n = 11n

Solving
15 + 9n = 11n

Solving for variable 'n'.

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

Add '-11n' to each side of the equation.
15 + 9n + -11n = 11n + -11n

Combine like terms: 9n + -11n = -2n
15 + -2n = 11n + -11n

Combine like terms: 11n + -11n = 0
15 + -2n = 0

Add '-15' to each side of the equation.
15 + -15 + -2n = 0 + -15

Combine like terms: 15 + -15 = 0
0 + -2n = 0 + -15
-2n = 0 + -15

Combine like terms: 0 + -15 = -15
-2n = -15

Divide each side by '-2'.
n = 7.5

Simplifying
n = 7.5

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