2(t-3)+9=-15

Solution for 2(t-3)+9=-15 equation:

Simplifying
2(t + -3) + 9 = -15

Reorder the terms:
2(-3 + t) + 9 = -15
(-3 * 2 + t * 2) + 9 = -15
(-6 + 2t) + 9 = -15

Reorder the terms:
-6 + 9 + 2t = -15

Combine like terms: -6 + 9 = 3
3 + 2t = -15

Solving
3 + 2t = -15

Solving for variable 't'.

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

Add '-3' to each side of the equation.
3 + -3 + 2t = -15 + -3

Combine like terms: 3 + -3 = 0
0 + 2t = -15 + -3
2t = -15 + -3

Combine like terms: -15 + -3 = -18
2t = -18

Divide each side by '2'.
t = -9

Simplifying
t = -9