.4t+.6(t-.2)=3.59

Solution for .4t+.6(t-.2)=3.59 equation:

Simplifying
0.4t + 0.6(t + -0.2) = 3.59

Reorder the terms:
0.4t + 0.6(-0.2 + t) = 3.59
0.4t + (-0.2 * 0.6 + t * 0.6) = 3.59
0.4t + (-0.12 + 0.6t) = 3.59

Reorder the terms:
-0.12 + 0.4t + 0.6t = 3.59

Combine like terms: 0.4t + 0.6t = 1t
-0.12 + 1t = 3.59

Solving
-0.12 + 1t = 3.59

Solving for variable 't'.

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

Add '0.12' to each side of the equation.
-0.12 + 0.12 + 1t = 3.59 + 0.12

Combine like terms: -0.12 + 0.12 = 0.00
0.00 + 1t = 3.59 + 0.12
1t = 3.59 + 0.12

Combine like terms: 3.59 + 0.12 = 3.71
1t = 3.71

Divide each side by '1'.
t = 3.71

Simplifying
t = 3.71