3(-9-4n)-4=8n-9(n+2)

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Solution for 3(-9-4n)-4=8n-9(n+2) equation:


Simplifying
3(-9 + -4n) + -4 = 8n + -9(n + 2)
(-9 * 3 + -4n * 3) + -4 = 8n + -9(n + 2)
(-27 + -12n) + -4 = 8n + -9(n + 2)

Reorder the terms:
-27 + -4 + -12n = 8n + -9(n + 2)

Combine like terms: -27 + -4 = -31
-31 + -12n = 8n + -9(n + 2)

Reorder the terms:
-31 + -12n = 8n + -9(2 + n)
-31 + -12n = 8n + (2 * -9 + n * -9)
-31 + -12n = 8n + (-18 + -9n)

Reorder the terms:
-31 + -12n = -18 + 8n + -9n

Combine like terms: 8n + -9n = -1n
-31 + -12n = -18 + -1n

Solving
-31 + -12n = -18 + -1n

Solving for variable 'n'.

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

Add 'n' to each side of the equation.
-31 + -12n + n = -18 + -1n + n

Combine like terms: -12n + n = -11n
-31 + -11n = -18 + -1n + n

Combine like terms: -1n + n = 0
-31 + -11n = -18 + 0
-31 + -11n = -18

Add '31' to each side of the equation.
-31 + 31 + -11n = -18 + 31

Combine like terms: -31 + 31 = 0
0 + -11n = -18 + 31
-11n = -18 + 31

Combine like terms: -18 + 31 = 13
-11n = 13

Divide each side by '-11'.
n = -1.181818182

Simplifying
n = -1.181818182

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