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Mathematics 20 Online
OpenStudy (anonymous):

Solve the system by elimination. Write a soluion as a point, no spaces: (x,y) 2x+4y=-18 -3x+3y=-9

OpenStudy (vijay):

x = -9 and y = -12

OpenStudy (anonymous):

first multiply 1st equation with 3 and 2nd equation with 2

OpenStudy (anonymous):

hmmm different then I got... back to the drawing board

OpenStudy (anonymous):

y=-4

OpenStudy (anonymous):

and x=-5 it looks like

OpenStudy (anonymous):

no

OpenStudy (anonymous):

okay

OpenStudy (anonymous):

-9, -12 is not right

OpenStudy (anonymous):

y=-4 and x=-1

OpenStudy (anonymous):

yea didnt think so had to work it out

OpenStudy (anonymous):

thank you for having my back Satellite ;)

OpenStudy (anonymous):

ashes2ashes has it

OpenStudy (anonymous):

good work btw this should serve notice that it is pretty much caveat emptor here

OpenStudy (anonymous):

understood... I mainly ask while I am working them out to make sure I am doing it right

OpenStudy (anonymous):

good idea, especially so you have some idea what is going on and don't take answers at face value without checking

OpenStudy (anonymous):

exactly... otherwise I will not learn lol

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