21=4t

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Solution for 21=4t equation:


Simplifying
21 = 4t

Solving
21 = 4t

Solving for variable 't'.

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

Add '-4t' to each side of the equation.
21 + -4t = 4t + -4t

Combine like terms: 4t + -4t = 0
21 + -4t = 0

Add '-21' to each side of the equation.
21 + -21 + -4t = 0 + -21

Combine like terms: 21 + -21 = 0
0 + -4t = 0 + -21
-4t = 0 + -21

Combine like terms: 0 + -21 = -21
-4t = -21

Divide each side by '-4'.
t = 5.25

Simplifying
t = 5.25

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