21-2t=3

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Solution for 21-2t=3 equation: 


Simplifying
21 + -2t = 3

Solving
21 + -2t = 3

Solving for variable 't'.

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

Add '-21' to each side of the equation.
21 + -21 + -2t = 3 + -21

Combine like terms: 21 + -21 = 0
0 + -2t = 3 + -21
-2t = 3 + -21

Combine like terms: 3 + -21 = -18
-2t = -18

Divide each side by '-2'.
t = 9

Simplifying
t = 9

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