Question

I have an Algebra exam tomorrow. Can anyone just help me revise some of the basics?

Answer 1

Algebra I I suspect? :)

Answer 2

Yes

Answer 3

Alright then! Let's do this :)
Give me 30 seconds.

Answer 4

Thanks! :)

Answer 5

No problem. So I'm going to mix it up. I will ask you for definitions, formulas, and I'll need you to simplify a few equations okay?

Answer 6

Aight

Answer 7

Alright, Let's start with Order of Operations.

Explain the steps of PEMDAS.
Then solve the equation using Order of Operations below.

Answer 8

-2[3 -(-2)(6)]= ?

Answer 9

P = Parentheses
E = Exponents?
M = Multiplication
D = Division
A = Addition
S = Subtraction

Answer 10

34?

Answer 11

Wait actually...

Answer 12

Great! You've mastered the understanding of PEMDAS

But as for solving the equations.... You took a different route there

Answer 13

1.) Parenthesis in PEMDAS
Multiply (-2)(6)= ?

Answer 14

-12

Answer 15

-12 - 3 = 15 because of double negative?

Answer 16

3 - (-12) is how it should be written actually, right?

Answer 17

2.) There are no exponents so we move multiplication.
Multiply -12 by _____ ? What do you think?

Answer 18

You got it :)

Answer 19

then -2 x 15 is -30?

Answer 20

You got it again!

Answer 21

Where did you get 34 from though?

Answer 22

-2[3 -(-2)(6)]= ?
I did 3 - (-2) first for some reason

Answer 23

Oh alright! That's fine, but just as long you knew what mistake you made :)

So now, I'm going to ask you for definitions.

Answer 24

What is absolute value? Give me an example.

Answer 25

The number between 0 and (for example, 5)?

Answer 26

And if it was -7, the absolute value would be 7?

Answer 27

So an example would be:

10 is the absolute value of 10 and -10