Question

How do you solve `\frac { 13- 4u } { 3u } = 2`?

Answer 1

u = 1.3

Explanation:

Cross multiply 3u by 2 to give `13 - 4u = 6u`

Move the 4u to the other side, observing the "change the side, change the sign" rule. This gives you `13 = 6u + 4u`

Then gather together the "u" terms and you have #13 = 10u"

And from that you can see that `u = 13/10 = 1.3`

Simple !