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Mathematics 14 Online
OpenStudy (anonymous):

if y-x/x+y=7/9,then x-y=?

OpenStudy (welshfella):

try cross multiplying and find y in terms of x

OpenStudy (anonymous):

it's not working

OpenStudy (welshfella):

9y - 9x = 7x + 7y 9y - 7y = 7x + 9x can you continue

OpenStudy (anonymous):

-(y-x)

OpenStudy (welshfella):

2y = 16x y = 8x

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