00:01
In this problem, we're going to solve a two -step equation, and we're going to use both properties of multiplication.
00:10
I'm sorry, division.
00:13
We're going to use the division property of equality and the addition property of equality.
00:18
These properties basically state that whatever you do to the one side of the equation, you have to do to the other side of the equation.
00:24
So let's take a look at, first of all, getting 3x by itself isolating the 3x.
00:30
Now we see 3x is being subtracted by 7.
00:33
And to undo that, to get rid of the minus 7, we have to add 7.
00:38
We're going to do that to both sides, once again, because of the addition property of equality.
00:43
Now, minus 6 and adding 7 kind of cancel each other.
00:46
They kind of just go away...