t+t=t+t-40

Solution for t+t=t+t-40 equation:

Simplifying
t + t = t + t + -40

Combine like terms: t + t = 2t
2t = t + t + -40

Reorder the terms:
2t = -40 + t + t

Combine like terms: t + t = 2t
2t = -40 + 2t

Add '-2t' to each side of the equation.
2t + -2t = -40 + 2t + -2t

Combine like terms: 2t + -2t = 0
0 = -40 + 2t + -2t

Combine like terms: 2t + -2t = 0
0 = -40 + 0
0 = -40

Solving
0 = -40

Couldn't find a variable to solve for.

This equation is invalid, the left and right sides are not equal, therefore there is no solution.