12-9t+15t-18=

Solution for 12-9t+15t-18= equation:

Simplifying
12 + -9t + 15t + -18 = 0

Reorder the terms:
12 + -18 + -9t + 15t = 0

Combine like terms: 12 + -18 = -6
-6 + -9t + 15t = 0

Combine like terms: -9t + 15t = 6t
-6 + 6t = 0

Solving
-6 + 6t = 0

Solving for variable 't'.

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

Add '6' to each side of the equation.
-6 + 6 + 6t = 0 + 6

Combine like terms: -6 + 6 = 0
0 + 6t = 0 + 6
6t = 0 + 6

Combine like terms: 0 + 6 = 6
6t = 6

Divide each side by '6'.
t = 1

Simplifying
t = 1