4x-2.1=6.9

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Solution for 4x-2.1=6.9 equation: 



4x-2.1=6.9

We move all terms to the left:

4x-2.1-(6.9)=0

We add all the numbers together, and all the variables

4x-9=0

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

4x=9

x=9/4

x=2+1/4

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