(5+9)-(3+-12)=2(11+t)

Solution for (5+9)-(3+-12)=2(11+t) equation:

Simplifying
(5 + 9) + -1(3 + -12) = 2(11 + t)

Combine like terms: 5 + 9 = 14
(14) + -1(3 + -12) = 2(11 + t)
14 + -1(3 + -12) = 2(11 + t)

Combine like terms: 3 + -12 = -9
14 + -1(-9) = 2(11 + t)

Multiply -1 * -9
14 + 9 = 2(11 + t)

Combine like terms: 14 + 9 = 23
23 = 2(11 + t)
23 = (11 * 2 + t * 2)
23 = (22 + 2t)

Solving
23 = 22 + 2t

Solving for variable 't'.

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

Add '-2t' to each side of the equation.
23 + -2t = 22 + 2t + -2t

Combine like terms: 2t + -2t = 0
23 + -2t = 22 + 0
23 + -2t = 22

Add '-23' to each side of the equation.
23 + -23 + -2t = 22 + -23

Combine like terms: 23 + -23 = 0
0 + -2t = 22 + -23
-2t = 22 + -23

Combine like terms: 22 + -23 = -1
-2t = -1

Divide each side by '-2'.
t = 0.5

Simplifying
t = 0.5