8+t=21

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Solution for 8+t=21 equation: 


Simplifying
8 + t = 21

Solving
8 + t = 21

Solving for variable 't'.

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

Add '-8' to each side of the equation.
8 + -8 + t = 21 + -8

Combine like terms: 8 + -8 = 0
0 + t = 21 + -8
t = 21 + -8

Combine like terms: 21 + -8 = 13
t = 13

Simplifying
t = 13

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