00:01
For this problem, we're trying to solve the equation, provide our reasons for the step, and then check our final answer.
00:06
Now, the order that you do this is depending on you, but i like to move my x is to the left -hand side, so i'm going to subtract 9x from both sides.
00:14
Because i'm subtracting, i'm doing the subtraction, property of equality, which i will abbreviate as poe.
00:21
The result from this is that these will cancel.
00:24
6 minus 9 is negative 3x, plus 20 equals 5.
00:29
Now i'm going to continue with that.
00:31
I'm going to move the 20 to the right -hand side by doing a similar process.
00:35
So since i'm subtracting 20 from both sides, i'm once again using my subtraction property of equality.
00:41
So again, i'm going to abbreviate as poe.
00:43
What i'm left with is negative 3x is equal to negative 15...