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Solve these systems of equations 7x+2y= -3 and -14x-4y=6 . I got y=3/2, x= -6/7 am I right ?

Mathematics
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hmm multiply first equation with 2
14x+4y=-6
14x+4y+6=0

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Other answers:

well yeah i did that multiplying it by -2 so that when i add it in the second question -14x and 14X cancel out (I'm using linear combinations here)
-14x+4y-6=0
*equation
if thats the case both x and y cancels out!!
isnt it?
In the first equation you do 2y times -2 = -4y. Now in the 2nd equation you have -4y soo -4y+ -4y is -8y which means that the ys don't cancel out
nt really :)
infact both these lines are the same !!
take a look at the graph
http://www.wolframalpha.com/input/?i=solve+7x%2B2y%3D+-3++and+-14x-4y%3D6
yes I see...so there's something I'm doing wrong in my math here !
u were right they are the same line!
take a look at the question you have posted !!
:P yep makes sure u type the qns right :)

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