21=0.8t

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Solution for 21=0.8t equation:


Simplifying
21 = 0.8t

Solving
21 = 0.8t

Solving for variable 't'.

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

Add '-0.8t' to each side of the equation.
21 + -0.8t = 0.8t + -0.8t

Combine like terms: 0.8t + -0.8t = 0.0
21 + -0.8t = 0.0

Add '-21' to each side of the equation.
21 + -21 + -0.8t = 0.0 + -21

Combine like terms: 21 + -21 = 0
0 + -0.8t = 0.0 + -21
-0.8t = 0.0 + -21

Combine like terms: 0.0 + -21 = -21
-0.8t = -21

Divide each side by '-0.8'.
t = 26.25

Simplifying
t = 26.25

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