Question

Ok so this equation is confusing -243=-9(10+x)
My answer is 153 (the one i have wrong) But it says the real answer is 17 but how? since i did pemdas and distributed first

Answer 1

@Ashleyisakitty can you maybe help me?

Answer 2

divide by -9 and then subtract 10

Answer 3

how since there is parenthesis there i cant D:

Answer 4

my answer was 153=x i cant divide anymore and i searched up the worksheet and the answer was 17

Answer 5

yes you can! ok listen the problem is pretty much saying that -243= the sum of x+10 times nine

Answer 6

so x+10 itself, since it's in parentheses is like it's own number already, it's almost like 9x, it's its own entity

Answer 7

divide -243 by -9

Answer 8

and you are left with 10+x, then you must subtract ten, and you get 17, just like the worksheet said

Answer 9

when you are doing things like this, you must do pemdas backwards

Answer 10

oooh thanks shirley I didnt get it. Im not that much of a math wiz .3.

Answer 11

nah it's ok this stuff always confused me when i was in algebra

Answer 12

:D

Answer 13

im not in algebra though i used too im in geometry but my effin teacher is giving out warm up problems with alg 1 i get confused cuz of that im doing good in geometry but algebra is not my thing

Answer 14

@kshirley

Answer 15

geometry is very easy, but you must know basic algebra to get anywhere in math, geometry is kind of irrelevant in upper level maths. when you do problems like this remember to try to get rid of the things farthest away from the variable first. if anything go to khan academy (google it) and they have a ton of helpful stuff @FweaBoyLive

Answer 16

thanks again for your help shirley :D your a lifesaver :D

Answer 17

no problem, good luck w geometry

Answer 18

thanks