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Mathematics 7 Online
OpenStudy (anonymous):

find the values of x and y for which 3y x+5 2x = 0 is true 6y 10

jimthompson5910 (jim_thompson5910):

can you draw out the problem?

OpenStudy (anonymous):

for the first one i got zero

jimthompson5910 (jim_thompson5910):

I'm not sure I fully understand the problem. Is this a matrix?

OpenStudy (anonymous):

yes

jimthompson5910 (jim_thompson5910):

can you draw out the matrix? I'm not seeing how it's supposed to be written

OpenStudy (anonymous):

Y=1.66666666667 ?

OpenStudy (anonymous):

OpenStudy (anonymous):

Pretty sure I'm right but I dunno coz I'm never right haha

jimthompson5910 (jim_thompson5910):

ok thanks, that clears things up a lot

jimthompson5910 (jim_thompson5910):

notice how 2x = 0, so that makes x = 0. if 6y = 10, then y = ???

OpenStudy (anonymous):

5/3?

OpenStudy (anonymous):

@jim_thompson5910

jimthompson5910 (jim_thompson5910):

good

jimthompson5910 (jim_thompson5910):

@SammiJS you have the right approximation for y. It's better to use a fraction because it's more exact

OpenStudy (anonymous):

okay so the answer is 0,5/3?

jimthompson5910 (jim_thompson5910):

I'd use parenthesis to indicate an ordered pair but I guess you can simply list the values in a comma separated list

jimthompson5910 (jim_thompson5910):

but yeah x = 0 and y = 5/3

OpenStudy (anonymous):

thank you

jimthompson5910 (jim_thompson5910):

no problem

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