13.5+.5t=21

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Solution for 13.5+.5t=21 equation: 


Simplifying
13.5 + 0.5t = 21

Solving
13.5 + 0.5t = 21

Solving for variable 't'.

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

Add '-13.5' to each side of the equation.
13.5 + -13.5 + 0.5t = 21 + -13.5

Combine like terms: 13.5 + -13.5 = 0.0
0.0 + 0.5t = 21 + -13.5
0.5t = 21 + -13.5

Combine like terms: 21 + -13.5 = 7.5
0.5t = 7.5

Divide each side by '0.5'.
t = 15

Simplifying
t = 15

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