7t-4t-1=20

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Solution for 7t-4t-1=20 equation: 



7t-4t-1=20

We move all terms to the left:

7t-4t-1-(20)=0

We add all the numbers together, and all the variables

3t-21=0

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

3t=21

t=21/3

t=7

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