-11.2+4(t+8.2)=37.5

Solution for -11.2+4(t+8.2)=37.5 equation:

Simplifying
-11.2 + 4(t + 8.2) = 37.5

Reorder the terms:
-11.2 + 4(8.2 + t) = 37.5
-11.2 + (8.2 * 4 + t * 4) = 37.5
-11.2 + (32.8 + 4t) = 37.5

Combine like terms: -11.2 + 32.8 = 21.6
21.6 + 4t = 37.5

Solving
21.6 + 4t = 37.5

Solving for variable 't'.

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

Add '-21.6' to each side of the equation.
21.6 + -21.6 + 4t = 37.5 + -21.6

Combine like terms: 21.6 + -21.6 = 0.0
0.0 + 4t = 37.5 + -21.6
4t = 37.5 + -21.6

Combine like terms: 37.5 + -21.6 = 15.9
4t = 15.9

Divide each side by '4'.
t = 3.975

Simplifying
t = 3.975