If 2x-3y=2 & (x+y)/(x-y)=7/3 then what is the value for x & y
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here is my answer to your question
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praveen8697:
hay u that is correct yar either your question may be wrong
Ok bro never mind. Never give up. Bye
Answered by
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2x -3y = 2. (1)
x+y/x-y = 7/3
by cross multiply
3x+3y = 7x-7y
3y + 7y = 7x - 3x
10y = 4x
5y/2 = x
now putting this value in equal (1)
2(5y/2) -3y = 2
5y-3y = 2
2y = 2
y= 2/2
y = 1
so
2x-3(1)= 2
2x-3 =2
2x = 5
x = 5/2
here is your answer
hope it may help you
x+y/x-y = 7/3
by cross multiply
3x+3y = 7x-7y
3y + 7y = 7x - 3x
10y = 4x
5y/2 = x
now putting this value in equal (1)
2(5y/2) -3y = 2
5y-3y = 2
2y = 2
y= 2/2
y = 1
so
2x-3(1)= 2
2x-3 =2
2x = 5
x = 5/2
here is your answer
hope it may help you
But the answer you have given is wrong because the answer stands as x=10 & y=2. I will explain it tommorow
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