21=5-t

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Solution for 21=5-t equation:


Simplifying
21 = 5 + -1t

Solving
21 = 5 + -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.
21 + t = 5 + -1t + t

Combine like terms: -1t + t = 0
21 + t = 5 + 0
21 + t = 5

Add '-21' to each side of the equation.
21 + -21 + t = 5 + -21

Combine like terms: 21 + -21 = 0
0 + t = 5 + -21
t = 5 + -21

Combine like terms: 5 + -21 = -16
t = -16

Simplifying
t = -16

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