Q.5 Which of the following is not a solution of the pair of equations 2x-5y=7 and 4x-10y=14 ? (a) x=6, y=1 (b) x=1,y=-1 (c) x=7/2, y=0 (d) x=3, y=1
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d is the correct answer
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Answer: d. x = 3 , y= 1
Step-by-step explanation: as 2*3-5*1=× 7
6-5=1
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