30x-2.1/3=40

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Solution for 30x-2.1/3=40 equation: 



30x-2.1/3=40

We move all terms to the left:

30x-2.1/3-(40)=0

determiningTheFunctionDomain
30x-40-2.1/3=0

We multiply all the terms by the denominator


30x*3-2.1-40*3=0

We add all the numbers together, and all the variables

30x*3-122.1=0

Wy multiply elements

90x-122.1=0

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

90x=122.1

x=122.1/90

x=1+15.2857142857/42.8571428571

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