21t-40=590

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Solution for 21t-40=590 equation: 



21t-40=590

We move all terms to the left:

21t-40-(590)=0

We add all the numbers together, and all the variables

21t-630=0

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

21t=630

t=630/21

t=30

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