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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