2 X + 3/Y = 7 ; 5X - 2/Y = 8 solve in substitution method.
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Hi
answer is 15/17
Step-by-step explanation:
First,
2x + 3/y = 7
=》2x = 7 - 3/y
=》2x = (7y - 3)/y
=》x= (7y - 3)/2y----->eq.1
Now,
=》5x - 2/y =8
Let put the value of x here.....
=》5[(7y - 3)/2y] - 2/y =8
=》(35y - 15)/2y - 2/y =8
=》[(35y - 15) - 2y]/2y =8
=》(33y - 15)= 16y
=》33y - 16y =15
=》17y =15
=》y= 15/17
then,
2x - 3/y =7
=》2x - 3/(15/17) =7
=》2x - 3×17/15 =7
=》2x - 17/5 =7
=》2x =7×5/17
=》2x =35/17
=》x =35/34
So, x is 35/34 & y is 15/17.....
Hope the answer will help you....
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here is your answer
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