-9(k+9)-(2k-1)=-8k

Solution for -9(k+9)-(2k-1)=-8k equation:

Simplifying
-9(k + 9) + -1(2k + -1) = -8k

Reorder the terms:
-9(9 + k) + -1(2k + -1) = -8k
(9 * -9 + k * -9) + -1(2k + -1) = -8k
(-81 + -9k) + -1(2k + -1) = -8k

Reorder the terms:
-81 + -9k + -1(-1 + 2k) = -8k
-81 + -9k + (-1 * -1 + 2k * -1) = -8k
-81 + -9k + (1 + -2k) = -8k

Reorder the terms:
-81 + 1 + -9k + -2k = -8k

Combine like terms: -81 + 1 = -80
-80 + -9k + -2k = -8k

Combine like terms: -9k + -2k = -11k
-80 + -11k = -8k

Solving
-80 + -11k = -8k

Solving for variable 'k'.

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

Add '8k' to each side of the equation.
-80 + -11k + 8k = -8k + 8k

Combine like terms: -11k + 8k = -3k
-80 + -3k = -8k + 8k

Combine like terms: -8k + 8k = 0
-80 + -3k = 0

Add '80' to each side of the equation.
-80 + 80 + -3k = 0 + 80

Combine like terms: -80 + 80 = 0
0 + -3k = 0 + 80
-3k = 0 + 80

Combine like terms: 0 + 80 = 80
-3k = 80

Divide each side by '-3'.
k = -26.66666667

Simplifying
k = -26.66666667