12-(-9n)=8-4n

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Solution for 12-(-9n)=8-4n equation:


Simplifying
12 + -1(-9n) = 8 + -4n

Remove parenthesis around (-9n)
12 + -1 * -9n = 8 + -4n

Multiply -1 * -9
12 + 9n = 8 + -4n

Solving
12 + 9n = 8 + -4n

Solving for variable 'n'.

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

Add '4n' to each side of the equation.
12 + 9n + 4n = 8 + -4n + 4n

Combine like terms: 9n + 4n = 13n
12 + 13n = 8 + -4n + 4n

Combine like terms: -4n + 4n = 0
12 + 13n = 8 + 0
12 + 13n = 8

Add '-12' to each side of the equation.
12 + -12 + 13n = 8 + -12

Combine like terms: 12 + -12 = 0
0 + 13n = 8 + -12
13n = 8 + -12

Combine like terms: 8 + -12 = -4
13n = -4

Divide each side by '13'.
n = -0.3076923077

Simplifying
n = -0.3076923077

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