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Mathematics 7 Online
OpenStudy (anonymous):

-14x-8y=-8 5x+8y=28

OpenStudy (aravindg):

add the 2 equations what do you get ?

OpenStudy (anonymous):

9x=20

OpenStudy (anonymous):

its from another set of equations that didnt make sense..

OpenStudy (aravindg):

well check again?

OpenStudy (anonymous):

hm..

OpenStudy (anonymous):

7x+4y=-4 5x+8y=28 times -2. -14x-8y=-8 5x+8y=28 = 9x=20

OpenStudy (aravindg):

-14+5=?

OpenStudy (anonymous):

-19

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