00:01
Okay, so we want to solve the following equation for x.
00:03
So let's start by cross multiplying.
00:05
And let's also note that x cannot be equal to zero here, or we have division by zero.
00:10
So we have 2x is equal to 9x.
00:13
Let's subtract both sides, or let's subtract the 2x for both sides.
00:18
So we have that we have a 0 is equal to a 7x, dividing both sides by a 7.
00:26
We have x is equal to 0, but we said that x can't be equal to 0.
00:29
So actually for part a, we have no solutions.
00:34
For part b, we'll cross multiply again...