(t-40)+(t+60)+t=900

Solution for (t-40)+(t+60)+t=900 equation:

Simplifying
(t + -40) + (t + 60) + t = 900

Reorder the terms:
(-40 + t) + (t + 60) + t = 900

Remove parenthesis around (-40 + t)
-40 + t + (t + 60) + t = 900

Reorder the terms:
-40 + t + (60 + t) + t = 900

Remove parenthesis around (60 + t)
-40 + t + 60 + t + t = 900

Reorder the terms:
-40 + 60 + t + t + t = 900

Combine like terms: -40 + 60 = 20
20 + t + t + t = 900

Combine like terms: t + t = 2t
20 + 2t + t = 900

Combine like terms: 2t + t = 3t
20 + 3t = 900

Solving
20 + 3t = 900

Solving for variable 't'.

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

Add '-20' to each side of the equation.
20 + -20 + 3t = 900 + -20

Combine like terms: 20 + -20 = 0
0 + 3t = 900 + -20
3t = 900 + -20

Combine like terms: 900 + -20 = 880
3t = 880

Divide each side by '3'.
t = 293.3333333

Simplifying
t = 293.3333333