31+4t-t=40

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Solution for 31+4t-t=40 equation: 


Simplifying
31 + 4t + -1t = 40

Combine like terms: 4t + -1t = 3t
31 + 3t = 40

Solving
31 + 3t = 40

Solving for variable 't'.

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

Add '-31' to each side of the equation.
31 + -31 + 3t = 40 + -31

Combine like terms: 31 + -31 = 0
0 + 3t = 40 + -31
3t = 40 + -31

Combine like terms: 40 + -31 = 9
3t = 9

Divide each side by '3'.
t = 3

Simplifying
t = 3

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