.25(t+4)=21

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Solution for .25(t+4)=21 equation:


Simplifying
0.25(t + 4) = 21

Reorder the terms:
0.25(4 + t) = 21
(4 * 0.25 + t * 0.25) = 21
(1 + 0.25t) = 21

Solving
1 + 0.25t = 21

Solving for variable 't'.

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

Add '-1' to each side of the equation.
1 + -1 + 0.25t = 21 + -1

Combine like terms: 1 + -1 = 0
0 + 0.25t = 21 + -1
0.25t = 21 + -1

Combine like terms: 21 + -1 = 20
0.25t = 20

Divide each side by '0.25'.
t = 80

Simplifying
t = 80

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