12(4+n)+5(-2x-9)=18

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Solution for 12(4+n)+5(-2x-9)=18 equation: 


Simplifying
12(4 + n) + 5(-2x + -9) = 18
(4 * 12 + n * 12) + 5(-2x + -9) = 18
(48 + 12n) + 5(-2x + -9) = 18

Reorder the terms:
48 + 12n + 5(-9 + -2x) = 18
48 + 12n + (-9 * 5 + -2x * 5) = 18
48 + 12n + (-45 + -10x) = 18

Reorder the terms:
48 + -45 + 12n + -10x = 18

Combine like terms: 48 + -45 = 3
3 + 12n + -10x = 18

Solving
3 + 12n + -10x = 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 + 12n + -3 + -10x = 18 + -3

Reorder the terms:
3 + -3 + 12n + -10x = 18 + -3

Combine like terms: 3 + -3 = 0
0 + 12n + -10x = 18 + -3
12n + -10x = 18 + -3

Combine like terms: 18 + -3 = 15
12n + -10x = 15

Add '10x' to each side of the equation.
12n + -10x + 10x = 15 + 10x

Combine like terms: -10x + 10x = 0
12n + 0 = 15 + 10x
12n = 15 + 10x

Divide each side by '12'.
n = 1.25 + 0.8333333333x

Simplifying
n = 1.25 + 0.8333333333x

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