-2(t-2)-(t+7)=3

Solution for -2(t-2)-(t+7)=3 equation:

Simplifying
-2(t + -2) + -1(t + 7) = 3

Reorder the terms:
-2(-2 + t) + -1(t + 7) = 3
(-2 * -2 + t * -2) + -1(t + 7) = 3
(4 + -2t) + -1(t + 7) = 3

Reorder the terms:
4 + -2t + -1(7 + t) = 3
4 + -2t + (7 * -1 + t * -1) = 3
4 + -2t + (-7 + -1t) = 3

Reorder the terms:
4 + -7 + -2t + -1t = 3

Combine like terms: 4 + -7 = -3
-3 + -2t + -1t = 3

Combine like terms: -2t + -1t = -3t
-3 + -3t = 3

Solving
-3 + -3t = 3

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 + -3t = 3 + 3

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

Combine like terms: 3 + 3 = 6
-3t = 6

Divide each side by '-3'.
t = -2

Simplifying
t = -2