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Mathematics 20 Online
OpenStudy (anonymous):

Please Help Me

OpenStudy (anonymous):

OpenStudy (anonymous):

still need help?

OpenStudy (anonymous):

yas

OpenStudy (anonymous):

ok so you have \[3x+6y=3\] + \[5x-y=27\] right

OpenStudy (anonymous):

yes

OpenStudy (anonymous):

so multiply all of 5x-y=27 by 6

OpenStudy (anonymous):

what do you get?

OpenStudy (anonymous):

24

OpenStudy (anonymous):

you should of got 30x-6y=162

OpenStudy (anonymous):

but thats fine

OpenStudy (anonymous):

oh i see what you did okay

OpenStudy (anonymous):

so now you have 3x+6y=3 + 30x-6y=162 right

OpenStudy (anonymous):

yas

OpenStudy (anonymous):

ok so now the positive 6y and the negative 6y cancel now right?

OpenStudy (anonymous):

sure

OpenStudy (anonymous):

ok so you are left with 3x=3 +30x=162 so 30x+3x is 33x and 3+162 is 165 right so you have 33x=165 does this make since so far?

OpenStudy (anonymous):

yas

OpenStudy (anonymous):

ok so then you would divide 33 from both sides and end up with what? x=______

OpenStudy (anonymous):

x=5?

OpenStudy (anonymous):

right so plug in 5 for x in 3x+6y=3 then solve for y

OpenStudy (anonymous):

what do you get?

OpenStudy (anonymous):

-2

OpenStudy (anonymous):

yes so x=5 and y=-2 make since?

OpenStudy (anonymous):

yes, thank you. can you help me with my other problems?

OpenStudy (anonymous):

yea no prob but i might have to go soon so ill help until then

OpenStudy (anonymous):

i have to go at one...so until then?

OpenStudy (anonymous):

12:15 sorry ill stil help until then ill fan you so if you ever need help just tag me or message me ok?

OpenStudy (anonymous):

okay, thxs.

OpenStudy (anonymous):

these are my last two...you dont have to explain these if you dont want to or have time to

OpenStudy (anonymous):

the second one is c

OpenStudy (anonymous):

thanks

OpenStudy (anonymous):

no prob hey i got to go im sorry

OpenStudy (anonymous):

will u still need help tomorrow?

OpenStudy (anonymous):

yes...i'll just guess on the last one...thnks for the help

OpenStudy (anonymous):

your welcome ;) bye

OpenStudy (anonymous):

byii

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