0.3x-2.1/5=0.4

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Solution for 0.3x-2.1/5=0.4 equation: 



0.3x-2.1/5=0.4

We move all terms to the left:

0.3x-2.1/5-(0.4)=0

We add all the numbers together, and all the variables

0.3x-0.4-2.1/5=0

We multiply all the terms by the denominator


(0.3x)*5-2.1-(0.4)*5=0

We add all the numbers together, and all the variables

(+0.3x)*5-2.1-(0.4)*5=0

We add all the numbers together, and all the variables

(+0.3x)*5-4.1=0

We multiply parentheses

0x-4.1=0

We add all the numbers together, and all the variables

x-4.1=0

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

x=4.1

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