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    Question

    if 2x +3y =7 and 2x+2

    -3y+2 =7, then find the value of x and y.
    A y=2 and x =3 Correct Answer Incorrect Answer
    B x =1 and y =3 Correct Answer Incorrect Answer
    C x =3 and y =3 Correct Answer Incorrect Answer
    D y=1 and x =2 Correct Answer Incorrect Answer

    Solution

    2x +3y =7 … (1) And 2x+2 -3y+2 =7 4 ×2x – 3 ×3y =7 … (2) Let, 2x =a and 3y = b Then (1) and (2) …. a + b =7 4a – 3b =7 On solving equations- a =4, b =3 now – 2x =4 =22 x =2 And 3y =3 =31 y =1. (2,1)

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