-42.12=7.8t

Solution for -42.12=7.8t equation:

Simplifying
-42.12 = 7.8t

Solving
-42.12 = 7.8t

Solving for variable 't'.

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

Add '-7.8t' to each side of the equation.
-42.12 + -7.8t = 7.8t + -7.8t

Combine like terms: 7.8t + -7.8t = 0.0
-42.12 + -7.8t = 0.0

Add '42.12' to each side of the equation.
-42.12 + 42.12 + -7.8t = 0.0 + 42.12

Combine like terms: -42.12 + 42.12 = 0.00
0.00 + -7.8t = 0.0 + 42.12
-7.8t = 0.0 + 42.12

Combine like terms: 0.0 + 42.12 = 42.12
-7.8t = 42.12

Divide each side by '-7.8'.
t = -5.4

Simplifying
t = -5.4