t+10.5+12t+90=180

Solution for t+10.5+12t+90=180 equation:

Simplifying
t + 10.5 + 12t + 90 = 180

Reorder the terms:
10.5 + 90 + t + 12t = 180

Combine like terms: 10.5 + 90 = 100.5
100.5 + t + 12t = 180

Combine like terms: t + 12t = 13t
100.5 + 13t = 180

Solving
100.5 + 13t = 180

Solving for variable 't'.

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

Add '-100.5' to each side of the equation.
100.5 + -100.5 + 13t = 180 + -100.5

Combine like terms: 100.5 + -100.5 = 0.0
0.0 + 13t = 180 + -100.5
13t = 180 + -100.5

Combine like terms: 180 + -100.5 = 79.5
13t = 79.5

Divide each side by '13'.
t = 6.115384615

Simplifying
t = 6.115384615