-9(t-4)-(t+5)=10

Solution for -9(t-4)-(t+5)=10 equation:

Simplifying
-9(t + -4) + -1(t + 5) = 10

Reorder the terms:
-9(-4 + t) + -1(t + 5) = 10
(-4 * -9 + t * -9) + -1(t + 5) = 10
(36 + -9t) + -1(t + 5) = 10

Reorder the terms:
36 + -9t + -1(5 + t) = 10
36 + -9t + (5 * -1 + t * -1) = 10
36 + -9t + (-5 + -1t) = 10

Reorder the terms:
36 + -5 + -9t + -1t = 10

Combine like terms: 36 + -5 = 31
31 + -9t + -1t = 10

Combine like terms: -9t + -1t = -10t
31 + -10t = 10

Solving
31 + -10t = 10

Solving for variable 't'.

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

Add '-31' to each side of the equation.
31 + -31 + -10t = 10 + -31

Combine like terms: 31 + -31 = 0
0 + -10t = 10 + -31
-10t = 10 + -31

Combine like terms: 10 + -31 = -21
-10t = -21

Divide each side by '-10'.
t = 2.1

Simplifying
t = 2.1