15n-2(n+6)-9=4

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Solution for 15n-2(n+6)-9=4 equation:


Simplifying
15n + -2(n + 6) + -9 = 4

Reorder the terms:
15n + -2(6 + n) + -9 = 4
15n + (6 * -2 + n * -2) + -9 = 4
15n + (-12 + -2n) + -9 = 4

Reorder the terms:
-12 + -9 + 15n + -2n = 4

Combine like terms: -12 + -9 = -21
-21 + 15n + -2n = 4

Combine like terms: 15n + -2n = 13n
-21 + 13n = 4

Solving
-21 + 13n = 4

Solving for variable 'n'.

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

Add '21' to each side of the equation.
-21 + 21 + 13n = 4 + 21

Combine like terms: -21 + 21 = 0
0 + 13n = 4 + 21
13n = 4 + 21

Combine like terms: 4 + 21 = 25
13n = 25

Divide each side by '13'.
n = 1.923076923

Simplifying
n = 1.923076923

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