2(5+t-1)=13

Solution for 2(5+t-1)=13 equation:

Simplifying
2(5 + t + -1) = 13

Reorder the terms:
2(5 + -1 + t) = 13

Combine like terms: 5 + -1 = 4
2(4 + t) = 13
(4 * 2 + t * 2) = 13
(8 + 2t) = 13

Solving
8 + 2t = 13

Solving for variable 't'.

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

Add '-8' to each side of the equation.
8 + -8 + 2t = 13 + -8

Combine like terms: 8 + -8 = 0
0 + 2t = 13 + -8
2t = 13 + -8

Combine like terms: 13 + -8 = 5
2t = 5

Divide each side by '2'.
t = 2.5

Simplifying
t = 2.5