.4n-1=5/7

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Solution for .4n-1=5/7 equation: 



.4n-1=5/7

We move all terms to the left:

.4n-1-(5/7)=0

We add all the numbers together, and all the variables

.4n-1-(+5/7)=0

We get rid of parentheses

.4n-1-5/7=0

We multiply all the terms by the denominator


(.4n)*7-5-1*7=0

We add all the numbers together, and all the variables

(+.4n)*7-5-1*7=0

We add all the numbers together, and all the variables

(+.4n)*7-12=0

We multiply parentheses

7n-12=0

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

7n=12

n=12/7

n=1+5/7

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