t+28=21

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Solution for t+28=21 equation:


Simplifying
t + 28 = 21

Reorder the terms:
28 + t = 21

Solving
28 + t = 21

Solving for variable 't'.

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

Add '-28' to each side of the equation.
28 + -28 + t = 21 + -28

Combine like terms: 28 + -28 = 0
0 + t = 21 + -28
t = 21 + -28

Combine like terms: 21 + -28 = -7
t = -7

Simplifying
t = -7

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