1/7k-4=3/7k+2

Solution for 1/7k-4=3/7k+2 equation:

1/7k-4=3/7k+2

We move all terms to the left:

1/7k-4-(3/7k+2)=0


Domain of the equation: 7k!=0

k!=0/7

k!=0

k∈R



Domain of the equation: 7k+2)!=0

k∈R


We get rid of parentheses

1/7k-3/7k-2-4=0

We multiply all the terms by the denominator


-2*7k-4*7k+1-3=0

We add all the numbers together, and all the variables

-2*7k-4*7k-2=0

Wy multiply elements

-14k-28k-2=0

We add all the numbers together, and all the variables

-42k-2=0

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

-42k=2

k=2/-42

k=-1/21