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Mathematics 14 Online
OpenStudy (anonymous):

5x-7y=-3 -7x+5y=-15

OpenStudy (anonymous):

i came up with x=5 y=4

OpenStudy (anonymous):

-7(5x-7y=-3) -5(-7x+5y=-15) -35x+49y=21 35x-25y=75 -35x+49y=21 35x-25y=75 24y=96 y=3 5x-21=-3 5x=18 x=18/5 (18/5,3)

OpenStudy (anonymous):

actualyl you're right, i messed up somewhere, but i'm getting tired, haha, sorry

OpenStudy (anonymous):

Thank you.....I'm 22 years rusty

OpenStudy (anonymous):

haha, no problem, you did better than I did, lol

OpenStudy (allyson):

how do you do 5x+7y=3 in form of y=mx+b

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