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

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


Simplifying
3 + -1(-9n) = 8 + -4n

Remove parenthesis around (-9n)
3 + -1 * -9n = 8 + -4n

Multiply -1 * -9
3 + 9n = 8 + -4n

Solving
3 + 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.
3 + 9n + 4n = 8 + -4n + 4n

Combine like terms: 9n + 4n = 13n
3 + 13n = 8 + -4n + 4n

Combine like terms: -4n + 4n = 0
3 + 13n = 8 + 0
3 + 13n = 8

Add '-3' to each side of the equation.
3 + -3 + 13n = 8 + -3

Combine like terms: 3 + -3 = 0
0 + 13n = 8 + -3
13n = 8 + -3

Combine like terms: 8 + -3 = 5
13n = 5

Divide each side by '13'.
n = 0.3846153846

Simplifying
n = 0.3846153846

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