3x-21=9.8

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Solution for 3x-21=9.8 equation: 



3x-21=9.8

We move all terms to the left:

3x-21-(9.8)=0

We add all the numbers together, and all the variables

3x-30.8=0

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

3x=30.8

x=30.8/3

x=10+0.8/3

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