2t-1=20-t

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Solution for 2t-1=20-t equation:


Simplifying
2t + -1 = 20 + -1t

Reorder the terms:
-1 + 2t = 20 + -1t

Solving
-1 + 2t = 20 + -1t

Solving for variable 't'.

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

Add 't' to each side of the equation.
-1 + 2t + t = 20 + -1t + t

Combine like terms: 2t + t = 3t
-1 + 3t = 20 + -1t + t

Combine like terms: -1t + t = 0
-1 + 3t = 20 + 0
-1 + 3t = 20

Add '1' to each side of the equation.
-1 + 1 + 3t = 20 + 1

Combine like terms: -1 + 1 = 0
0 + 3t = 20 + 1
3t = 20 + 1

Combine like terms: 20 + 1 = 21
3t = 21

Divide each side by '3'.
t = 7

Simplifying
t = 7

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