4.5-3.9=t

Solution for 4.5-3.9=t equation:

Simplifying
4.5 + -3.9 = t

Combine like terms: 4.5 + -3.9 = 0.6
0.6 = t

Solving
0.6 = t

Solving for variable 't'.

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

Add '-1t' to each side of the equation.
0.6 + -1t = t + -1t

Combine like terms: t + -1t = 0
0.6 + -1t = 0

Add '-0.6' to each side of the equation.
0.6 + -0.6 + -1t = 0 + -0.6

Combine like terms: 0.6 + -0.6 = 0.0
0.0 + -1t = 0 + -0.6
-1t = 0 + -0.6

Combine like terms: 0 + -0.6 = -0.6
-1t = -0.6

Divide each side by '-1'.
t = 0.6

Simplifying
t = 0.6