00:01
All right, here we have an expression, and we're trying to solve for x being equal to three.
00:07
So i put them in different colors just to kind of help me out a little bit.
00:11
You can use a highlighter if you would like.
00:15
And i'm going to replace every value that i see for x with a three.
00:20
And i always like to put that number in parentheses just to make sure i don't miss anything.
00:29
Now, once i have it substituted, i can follow my order of operations and begin the solving process.
00:42
So my first step is parentheses.
00:45
So, yes, i put parentheses around these.
00:48
However, it's just in closing a number saying that i substituted it.
00:52
This is the parentheses i'm going to focus on because there's an operation inside of those parentheses.
00:58
Everything else just gets copied and pasted while i do 3 minus 1 which is going to give me so done with parentheses i do have an exponent with this 3 to the second power so that's going to be my next step 45 divided by 9 times 3 times 2 right how do i know that it's multiplied well they're shop right next to each other there's no sign you just assume that you're multiplying.
01:32
If you would like, you can do your little dots just to emphasize that you are multiplying...