Solve x and y for the above equation
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Hey there!
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x/2-y/9=6
9x-2y/18=6
9x-2y =6*18
9x-2y = 108………[1]
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x/7+y/3=5
3x+7y/21=5
3x+7y=105 ……………[2]
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Multiply ✖ second equation by 3
9x+21y = 315 …………[3]
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Subtracting 1st equation from 3 rd equation
9x+21y = 315
9x-2y = 108
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23y = 207
y =207/23 = 9
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Substituting y =9 in the first equation
9x-2y = 108
9x -18=108
9x =108+18
9x =126
x=126/9
x=14
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(x,y) =(14,9)
hope helped!
=========================================
x/2-y/9=6
9x-2y/18=6
9x-2y =6*18
9x-2y = 108………[1]
=======================================
x/7+y/3=5
3x+7y/21=5
3x+7y=105 ……………[2]
=========================================
Multiply ✖ second equation by 3
9x+21y = 315 …………[3]
=======================================
Subtracting 1st equation from 3 rd equation
9x+21y = 315
9x-2y = 108
==========
23y = 207
y =207/23 = 9
=======================================
Substituting y =9 in the first equation
9x-2y = 108
9x -18=108
9x =108+18
9x =126
x=126/9
x=14
=======================================
(x,y) =(14,9)
hope helped!
saranyan:
Thank u praneeth
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5
I hope this solution would help you
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