00:01
I'm going to start this problem by drawing this wall down my inequality symbol to keep my work more organized.
00:06
Whatever we do to one side of the wall, we're going to do to the other side of the wall.
00:10
Now there's a couple ways you could start this problem.
00:13
You could start by distributing the negative 3 to the b and the minus 1.
00:17
That's going to be a little bit more work.
00:19
It's going to actually be faster if we start by undoing this multiplication with division.
00:26
So right now this says three times what's in parentheses.
00:29
So if i do the opposite, i'm going to divide both sides by negative three.
00:35
Now this is important right here.
00:38
I would even put a star by this part in your problem.
00:40
We just divided by a negative number.
00:43
That means we have to flip our inequality symbol.
00:46
Super, super important.
00:48
So this turns to one.
00:50
We're left with b minus 1 on the left, and then negative 6 on the right.
00:57
One last step.
00:59
We're going to add one to both sides to get...