00:01
For this problem, you will need to use the least comma denominator to be able to solve for a.
00:07
On the left side, you are given 1a in the denominator, while on the right side of the problem, you were given 3a.
00:14
So to start, you should multiply the left side times 3, so you can get the same denominator.
00:21
This will equal 6 over 3a minus 4, equaling to 4 over 4.
00:35
Over 3a.
00:39
Since the a's are both in the denominators, you know that a cannot equal 0.
00:48
So this will be excluded from the answers.
00:57
The next step will be to add 4 to both sides.
01:02
On the left side of the problem, that will equal 0, so you can cross out.
01:06
On the right side, i will add it, and that will equal 6 over 3a.
01:21
Equaling to 4 over 3a plus 4.
01:36
Since both of the denominators are the same now, you are able to combine like terms...