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By substitution method 1. x+y=14, x-y=4

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By substitution method 1. x+y=14, x-y=4

    • Posted by Eramma Eachnal 5 years, 4 months ago

    CBSE > Class 10 > Mathematics
    • 2 answers

    Gagandeep Singh 5 years, 4 months ago

    x+y=14----------------- (1) x-y=4----------------(2) From 2 x=4+y Substituting value of x in equation 1 4+y+y=14 4+2y=14 2y=14-4 2y=10 y=10/2 y=5 As x+y=14 x+5=14 x=14-5 x= 9 x=9 y=4

    1Thank You

    Yogita Ingle 5 years, 4 months ago

    x+y=14 ......... (i)

    x-y=4 .......... (ii)

    Adding  (i) and (ii)

    2x = 18

    x = 18/2 = 9

    Put x = 9 in (i)

    9 + y = 14

    y = 14 - 9

    y = 5

    0Thank You

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