2(2.50)+3(1.08)+t=13.80

Solution for 2(2.50)+3(1.08)+t=13.80 equation:

Simplifying
2(2.50) + 3(1.08) + t = 13.80

Multiply 2 * 2.50
5 + 3(1.08) + t = 13.80

Multiply 3 * 1.08
5 + 3.24 + t = 13.80

Combine like terms: 5 + 3.24 = 8.24
8.24 + t = 13.80

Solving
8.24 + t = 13.80

Solving for variable 't'.

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

Add '-8.24' to each side of the equation.
8.24 + -8.24 + t = 13.80 + -8.24

Combine like terms: 8.24 + -8.24 = 0.00
0.00 + t = 13.80 + -8.24
t = 13.80 + -8.24

Combine like terms: 13.80 + -8.24 = 5.56
t = 5.56

Simplifying
t = 5.56