3(2n-4)+15=18

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Solution for 3(2n-4)+15=18 equation:


Simplifying
3(2n + -4) + 15 = 18

Reorder the terms:
3(-4 + 2n) + 15 = 18
(-4 * 3 + 2n * 3) + 15 = 18
(-12 + 6n) + 15 = 18

Reorder the terms:
-12 + 15 + 6n = 18

Combine like terms: -12 + 15 = 3
3 + 6n = 18

Solving
3 + 6n = 18

Solving for variable 'n'.

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

Add '-3' to each side of the equation.
3 + -3 + 6n = 18 + -3

Combine like terms: 3 + -3 = 0
0 + 6n = 18 + -3
6n = 18 + -3

Combine like terms: 18 + -3 = 15
6n = 15

Divide each side by '6'.
n = 2.5

Simplifying
n = 2.5

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