7x-21=0.75x-6

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Solution for 7x-21=0.75x-6 equation: 



7x-21=0.75x-6

We move all terms to the left:

7x-21-(0.75x-6)=0

We get rid of parentheses

7x-0.75x+6-21=0

We add all the numbers together, and all the variables

6.25x-15=0

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

6.25x=15

x=15/6.25

x=2+1/2.5

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