3x+4.2=18

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Solution for 3x+4.2=18 equation: 



3x+4.2=18

We move all terms to the left:

3x+4.2-(18)=0

We add all the numbers together, and all the variables

3x-13.8=0

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

3x=13.8

x=13.8/3

x=4+1/1.66666666667

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