Question

92-5*7/2^3-7^2-(-6)^2

Answer 1

Awesome. Let's do this.
Tell me what you'd do first.

Answer 2

i do the parenthesis?

Answer 3

Well, there technically aren't any parentheses. I mean there IS a (-6), but the parentheses are just there to let us know it's a negative. So we'd just fall to exponents.

Answer 4

would it be best to do it like this 2*2*2-7*7- (-6)(-6)

Answer 5

Well, that's risky, because we might end up doing something out of order.

Answer 6

You're better off just putting down what they equal.

Answer 7

ok

Answer 8

92-5*7/8-49-36 or+36

Answer 9

Awesome. It would be -36 because (-6) squared is positive 36, but then we're doing 49 MINUS 36.

Answer 10

now i do the multiplication on the top

Answer 11

and would it be -5*7

Answer 12

Sorry for taking so long. I was on another site helping someone else. Let's see...
that's right!

Answer 13

So so far we have 92-35/8-49-36

Answer 14

Normally we'd want to do the 35/8 next, but it's as simple as it's going to get, so what do we do now?

Answer 15

subtract the 92-35

Answer 16

I know this sounds weird, but because the 35/8 is still division, we can't touch it for now. Just ignore that part (make believe it's a fraction) and go to the 49-36.

Answer 17

Basically, here's how you should envision the problem as for now:

Answer 18

lol thank you because now i am confused

Answer 19

\[92 - \frac{35}{8} - (49 -36)\]

Answer 20

I feel your pain. I hated algebra so much until I finally got used to it.

Answer 21

why like that though is whats confusing me

Answer 22

Well, normally we'd do the 35/8 first. Like... if it was 35/7, it'd turn into a nice number (5).

Answer 23

However, 35/8 will lead to an ugly number. Specifically,

Answer 24

4.375

Answer 25

So... for now, we decide to keep the slightly prettier 35/8

Answer 26

Does that part make sense so far?

Answer 27

yes now i have 92-35/8-13

Answer 28

Excellent. Were the parentheses bothering you at all? Or do you see why I snuck them in there?

Answer 29

do i fine the common denominator

Answer 30

i see why you put them there

Answer 31

Awesome. Lemme just write out our current equation in fraction form.

Answer 32

92/1-38/8-13/1

Answer 33

\[\frac{92}{1} - \frac{35}{8} - \frac{13}{1}\]

Answer 34

There's a lil typo on yours. Should say 35/8. But regardless, what is the common denominator we want?

Answer 35

8

Answer 36

beautiful.

Answer 37

736/8-35/8-104/8

Answer 38

597/8

Answer 39

Darn... I hate to say this, but when I double checked on my calculator, I got 21/8.

Lemme redo this on a piece of paper, and I'll be right back.

Answer 40

thats what i got on my calculator too

Answer 41

Oh wow...
I messed up when I put those parentheses in.

Answer 42

So we were good up until 92-35/8-49-36

Answer 43

Ok, I'm an idiot. I'm really sorry for messing up earlier.

Answer 44

ok

Answer 45

youj are oka we all make mistakes

Answer 46

What we should have done is 92-35/8+(-49-36)

Answer 47

This is letting us group the -49 and -36 together safely. I double checked this time.

Answer 48

35 is still over 8

Answer 49

correct.

Answer 50

ok give me a second

Answer 51

Earlier, I messed up and had you do positive 49 minus 36.
This time, we're going to do negative 49 minus 36.

Answer 52

Sure thing.

Answer 53

-85

Answer 54

92-35/8+(-85)

Answer 55

excellent.
After doing the common divisors and whatnot, you get 21/8. Great work!

Answer 56

i must have done my math again wrong

Answer 57

Really? If you multiply the 92/1 by 8/8 and the -85/1 by 8/8, you should have gotten 21/8

Answer 58

Go ahead and show me what you did, then. I'll see if I can catch any errors.

Answer 59

ok i did 92*8/1*8-35*1/8/1+(-85)*8/1*8

Answer 60

i got it lol

Answer 61

So you got (736/8)-35/8+(-680/8) I trust?

Answer 62

yes

Answer 63

what i did was left the zero of -680

Answer 64

Ah ok. And it did end up being 21/8 in the end? ^_^

Answer 65

yes

Answer 66

Saweet! Glad you got it. And thank God for calculators. Otherwise I'd have totally fed you an incorrect method of solving which would have probably haunted you for the rest of your algebraic life. lol

Did you wanna do one more question before I go to bed? I promise to double check my steps in between this time.

Answer 67

yes

Answer 68

do i need to post it like the last

Answer 69

Sure, go ahead and make a new question so that others can follow along if they need to.