9(n+9)+4(n-1)=

Solution for 9(n+9)+4(n-1)= equation:

Simplifying
9(n + 9) + 4(n + -1) = 0

Reorder the terms:
9(9 + n) + 4(n + -1) = 0
(9 * 9 + n * 9) + 4(n + -1) = 0
(81 + 9n) + 4(n + -1) = 0

Reorder the terms:
81 + 9n + 4(-1 + n) = 0
81 + 9n + (-1 * 4 + n * 4) = 0
81 + 9n + (-4 + 4n) = 0

Reorder the terms:
81 + -4 + 9n + 4n = 0

Combine like terms: 81 + -4 = 77
77 + 9n + 4n = 0

Combine like terms: 9n + 4n = 13n
77 + 13n = 0

Solving
77 + 13n = 0

Solving for variable 'n'.

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

Add '-77' to each side of the equation.
77 + -77 + 13n = 0 + -77

Combine like terms: 77 + -77 = 0
0 + 13n = 0 + -77
13n = 0 + -77

Combine like terms: 0 + -77 = -77
13n = -77

Divide each side by '13'.
n = -5.923076923

Simplifying
n = -5.923076923