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2 X + 3/Y = 7 ; 5X - 2/Y = 8 solve in substitution method. |
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Answer» Answer: 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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