90=2t-50

Solution for 90=2t-50 equation:

Simplifying
90 = 2t + -50

Reorder the terms:
90 = -50 + 2t

Solving
90 = -50 + 2t

Solving for variable 't'.

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

Add '-2t' to each side of the equation.
90 + -2t = -50 + 2t + -2t

Combine like terms: 2t + -2t = 0
90 + -2t = -50 + 0
90 + -2t = -50

Add '-90' to each side of the equation.
90 + -90 + -2t = -50 + -90

Combine like terms: 90 + -90 = 0
0 + -2t = -50 + -90
-2t = -50 + -90

Combine like terms: -50 + -90 = -140
-2t = -140

Divide each side by '-2'.
t = 70

Simplifying
t = 70