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laughoutloud
 one year ago
Best ResponseYou've already chosen the best response.3Do you know what two methods there are?

Phebe
 one year ago
Best ResponseYou've already chosen the best response.0No well one is the matrix method i think

laughoutloud
 one year ago
Best ResponseYou've already chosen the best response.3There is elimination and substitution

Phebe
 one year ago
Best ResponseYou've already chosen the best response.0I just need to know how to do the problem

laughoutloud
 one year ago
Best ResponseYou've already chosen the best response.3ok for A) 3x9y=3 6x3y=24 Solve the first equation for x

laughoutloud
 one year ago
Best ResponseYou've already chosen the best response.3add 9y on both sides

Phebe
 one year ago
Best ResponseYou've already chosen the best response.0ok like thisdw:1436908249151:dw

Phebe
 one year ago
Best ResponseYou've already chosen the best response.0so 3+9=12dw:1436908316517:dw

Phebe
 one year ago
Best ResponseYou've already chosen the best response.0at the bottom those are 3's

laughoutloud
 one year ago
Best ResponseYou've already chosen the best response.3ok so the first equation look like this. 3x=3+9y

laughoutloud
 one year ago
Best ResponseYou've already chosen the best response.3great so divide 3 by both sides

laughoutloud
 one year ago
Best ResponseYou've already chosen the best response.3k so when simplified we get x=1+3y

Phebe
 one year ago
Best ResponseYou've already chosen the best response.0where you get that from?

laughoutloud
 one year ago
Best ResponseYou've already chosen the best response.3dw:1436908850564:dw

laughoutloud
 one year ago
Best ResponseYou've already chosen the best response.3plug the equation into the second one like this 6(1+3y)3y=24

Phebe
 one year ago
Best ResponseYou've already chosen the best response.0dw:1436909266839:dw which one i isolate?

laughoutloud
 one year ago
Best ResponseYou've already chosen the best response.3ok so distribute out the 6

laughoutloud
 one year ago
Best ResponseYou've already chosen the best response.3when you do that you get 6+18y3y=24

laughoutloud
 one year ago
Best ResponseYou've already chosen the best response.3dw:1436909525038:dw

Phebe
 one year ago
Best ResponseYou've already chosen the best response.0dw:1436909655173:dw right?

laughoutloud
 one year ago
Best ResponseYou've already chosen the best response.3no subtract the 6

laughoutloud
 one year ago
Best ResponseYou've already chosen the best response.3dw:1436909811890:dw

Phebe
 one year ago
Best ResponseYou've already chosen the best response.0OH that kinda looks easy so the first equation is 2 right?

laughoutloud
 one year ago
Best ResponseYou've already chosen the best response.3no there's more lol y=2 now plug in 2 for y in the first equation

Phebe
 one year ago
Best ResponseYou've already chosen the best response.0Can you show me i dont know where to put it

laughoutloud
 one year ago
Best ResponseYou've already chosen the best response.3dw:1436910047668:dw

Phebe
 one year ago
Best ResponseYou've already chosen the best response.0so now i just put that the answer is 2 and 5?

laughoutloud
 one year ago
Best ResponseYou've already chosen the best response.3yes but write it like this (5,2)

Phebe
 one year ago
Best ResponseYou've already chosen the best response.0OKAY DANG THANK YOU! I BEEN WORKING ON THIS FOR 2 DAYS LOL

Phebe
 one year ago
Best ResponseYou've already chosen the best response.0can you help me with part B?

Phebe
 one year ago
Best ResponseYou've already chosen the best response.0thanksz! do u still got the problem?

laughoutloud
 one year ago
Best ResponseYou've already chosen the best response.3yes we are going to solve this one using elimination because it is quicker for this problem we solved the last one using substitution

Phebe
 one year ago
Best ResponseYou've already chosen the best response.0did we use elimination for the last one i think it was substitution

laughoutloud
 one year ago
Best ResponseYou've already chosen the best response.3no we used substituion

laughoutloud
 one year ago
Best ResponseYou've already chosen the best response.3we are going to solve this one together like this dw:1436910768080:dw

laughoutloud
 one year ago
Best ResponseYou've already chosen the best response.3no the 3y cancels out

Phebe
 one year ago
Best ResponseYou've already chosen the best response.0dw:1436911023546:dw and then we just move over the rest of the problem?

laughoutloud
 one year ago
Best ResponseYou've already chosen the best response.3yes! add the two equations together like this dw:1436911155428:dw

Phebe
 one year ago
Best ResponseYou've already chosen the best response.0and then we put x=3 in the problem?

laughoutloud
 one year ago
Best ResponseYou've already chosen the best response.3yes plug it into either equation you can choose

laughoutloud
 one year ago
Best ResponseYou've already chosen the best response.3ok dw:1436911428534:dw

laughoutloud
 one year ago
Best ResponseYou've already chosen the best response.3so your answer for part b is dw:1436911673328:dw

laughoutloud
 one year ago
Best ResponseYou've already chosen the best response.3np do you want help with part c?

Phebe
 one year ago
Best ResponseYou've already chosen the best response.0OH yea i almost forgot lol

laughoutloud
 one year ago
Best ResponseYou've already chosen the best response.3lol We are going to solve this one using substitution

laughoutloud
 one year ago
Best ResponseYou've already chosen the best response.3I substituted y into the second equation dw:1436911880872:dw

laughoutloud
 one year ago
Best ResponseYou've already chosen the best response.3not quite we have to distribute the 6 like this dw:1436912140467:dw I multiplied the six into the parenthesis

laughoutloud
 one year ago
Best ResponseYou've already chosen the best response.3now we can add 36 to each side

Phebe
 one year ago
Best ResponseYou've already chosen the best response.0dw:1436912247899:dw RIGHT

laughoutloud
 one year ago
Best ResponseYou've already chosen the best response.3so whats your new problem?

laughoutloud
 one year ago
Best ResponseYou've already chosen the best response.3Correct dw:1436912410251:dw

laughoutloud
 one year ago
Best ResponseYou've already chosen the best response.3now plug in the x value into the first equation

laughoutloud
 one year ago
Best ResponseYou've already chosen the best response.3dw:1436912554603:dw

Phebe
 one year ago
Best ResponseYou've already chosen the best response.0so +6 on both ends right

laughoutloud
 one year ago
Best ResponseYou've already chosen the best response.3actually we can just solve this by multiplying 11 and (1/2) then subtracting 6 dw:1436912738685:dw

laughoutloud
 one year ago
Best ResponseYou've already chosen the best response.3so the answer to part c is dw:1436912878418:dw

Phebe
 one year ago
Best ResponseYou've already chosen the best response.0well ima go so CYA~ thanks for all tha helpz
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