t+17=21

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Solution for t+17=21 equation: 


Simplifying
t + 17 = 21

Reorder the terms:
17 + t = 21

Solving
17 + t = 21

Solving for variable 't'.

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

Add '-17' to each side of the equation.
17 + -17 + t = 21 + -17

Combine like terms: 17 + -17 = 0
0 + t = 21 + -17
t = 21 + -17

Combine like terms: 21 + -17 = 4
t = 4

Simplifying
t = 4

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