21+3t=69

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Solution for 21+3t=69 equation: 



21+3t=69

We move all terms to the left:

21+3t-(69)=0

We add all the numbers together, and all the variables

3t-48=0

We move all terms containing t to the left, all other terms to the right

3t=48

t=48/3

t=16

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