Name: jennifer
Who is asking: Parent
Level of the question: Secondary

Question: 2/n +4 = 10- 4/3n

5(x-3/4) = x+1

 

Hi Jennifer,

In your first equation

 2/n + 4 = 10 - 4/3n

I would first eliminate the fractions. You can do this by multiplying both sides by 3n to get

3n ( 2/n + 4) = 3n (10 - 4/3n )
3n  2/n + 3n 4 = 3n 10 - 3n  4/3n
6 + 12 n = 30 n - 4

Thus

10 = 18 n
 n = 10/18  = 5/9

For the second problem multiply through the 5 on the right side, and then multiply both sides by 4 to clear the fractions.

Penny