Question

Simplify the expression.
(15 + 8)[23 – (10 + 7)]

Answer 1

Well, let's follow PEMDAS.

Parenthesis
Exponents
Multiplication or Division (left to right)
Addition OR Subtraction (left to right)

Answer 2

Which expression do you think we need to solve first?

Answer 3

138

Answer 4

parentesis

Answer 5

its not 138 sorry

Answer 6

@crabby_patty :

Please read the code of conduct, as this is a study site, not a "give an answer" website. Thank you.

Answer 7

fine

Answer 8

And @mimi723 :

But which equation inside of a parenthesis do we solve first?

(15 + 8)
[23 - (10 + 7)]
OR
(10 + 7)

HINT: Parenthesis inside of Parenthesis come first. c;

Answer 9

oops i mean (10+7)

Answer 10

Yes, the first one is (15 + 8), but it would be safer to solve (10 + 7) first, since it is inside of another set of parenthesis. So...
\[(15+8)[23-(10+7)]\]\[(15+8)[23-17]\]Do you know how to solve it from here?

Answer 11

oops i typed that wrong

Answer 12

no because i would just have 6 and 23 and have nothing to do with them

Answer 13

Hm. I really do not understand what you are saying there. I also want to ask, is it..

(15 + 8)[23 - 17]
OR
(15 + 8) - [23 - 17]

Answer 14

(15 + 8)[23 - 17]

Answer 15

Oh, well if it is like that, then it means that it is 23 TIMES 6. When two parenthesis are together, they are being multiplied...
\[(15+8)[23-17]=(15+8)\times[23-17]=23\times6=???\]

So, do you know what 23 times 6 is?

Answer 16

not by heart

Answer 17

138?

Answer 18

Yes.

Answer 19

yay

Answer 20

thnx a lot

Answer 21

You are welcome. I will give you a medal for being such a great mathematician. ;D

Answer 22

Thanks for the fan as well.

Answer 23

thank you :D