3x+1.2=21

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Solution for 3x+1.2=21 equation: 



3x+1.2=21

We move all terms to the left:

3x+1.2-(21)=0

We add all the numbers together, and all the variables

3x-19.8=0

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

3x=19.8

x=19.8/3

x=6+1/1.6666666666667

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