-2(t-3)-(t+7)=11

Solution for -2(t-3)-(t+7)=11 equation:

Simplifying
-2(t + -3) + -1(t + 7) = 11

Reorder the terms:
-2(-3 + t) + -1(t + 7) = 11
(-3 * -2 + t * -2) + -1(t + 7) = 11
(6 + -2t) + -1(t + 7) = 11

Reorder the terms:
6 + -2t + -1(7 + t) = 11
6 + -2t + (7 * -1 + t * -1) = 11
6 + -2t + (-7 + -1t) = 11

Reorder the terms:
6 + -7 + -2t + -1t = 11

Combine like terms: 6 + -7 = -1
-1 + -2t + -1t = 11

Combine like terms: -2t + -1t = -3t
-1 + -3t = 11

Solving
-1 + -3t = 11

Solving for variable 't'.

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

Add '1' to each side of the equation.
-1 + 1 + -3t = 11 + 1

Combine like terms: -1 + 1 = 0
0 + -3t = 11 + 1
-3t = 11 + 1

Combine like terms: 11 + 1 = 12
-3t = 12

Divide each side by '-3'.
t = -4

Simplifying
t = -4