-9(t-8)-(t+3)=4

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

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

Reorder the terms:
-9(-8 + t) + -1(t + 3) = 4
(-8 * -9 + t * -9) + -1(t + 3) = 4
(72 + -9t) + -1(t + 3) = 4

Reorder the terms:
72 + -9t + -1(3 + t) = 4
72 + -9t + (3 * -1 + t * -1) = 4
72 + -9t + (-3 + -1t) = 4

Reorder the terms:
72 + -3 + -9t + -1t = 4

Combine like terms: 72 + -3 = 69
69 + -9t + -1t = 4

Combine like terms: -9t + -1t = -10t
69 + -10t = 4

Solving
69 + -10t = 4

Solving for variable 't'.

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

Add '-69' to each side of the equation.
69 + -69 + -10t = 4 + -69

Combine like terms: 69 + -69 = 0
0 + -10t = 4 + -69
-10t = 4 + -69

Combine like terms: 4 + -69 = -65
-10t = -65

Divide each side by '-10'.
t = 6.5

Simplifying
t = 6.5