5n+15=2n+105

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Solution for 5n+15=2n+105 equation:


Simplifying
5n + 15 = 2n + 105

Reorder the terms:
15 + 5n = 2n + 105

Reorder the terms:
15 + 5n = 105 + 2n

Solving
15 + 5n = 105 + 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.
15 + 5n + -2n = 105 + 2n + -2n

Combine like terms: 5n + -2n = 3n
15 + 3n = 105 + 2n + -2n

Combine like terms: 2n + -2n = 0
15 + 3n = 105 + 0
15 + 3n = 105

Add '-15' to each side of the equation.
15 + -15 + 3n = 105 + -15

Combine like terms: 15 + -15 = 0
0 + 3n = 105 + -15
3n = 105 + -15

Combine like terms: 105 + -15 = 90
3n = 90

Divide each side by '3'.
n = 30

Simplifying
n = 30

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