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Solve the following system of linear …

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Solve the following system of linear equations by substitution method: 2x – y = 2 x + 3y =15

    • Posted by Ok Wahsi 3 years, 6 months ago

    CBSE > Class 10 > Mathematics
    • 2 answers

    Maniya Jain 3 years, 6 months ago

    2x-y=2 2x-2=y ....(1) x+3y=15 ....(2) By substituting the value from 1 and 2 eq. x+3(2x-2)=15 x+6x-6=15 7x-6=15 7x = 21 x= 21÷7 x=3 From 1 eq we can find out the value of y ..... 2x-2=y 2(3)-2=y 6-2 =y x=3 and y=4

    1Thank You

    Yogita Ingle 3 years, 6 months ago

    2x - y = 2

    y = 2x - 2 ...(1)

    x + 3y = 15 ...(2)

    Substituting the value of y from (1) in (2), we get,

    x + 6x - 6 = 15

    7x = 21

    x = 3

    From (1),

    y = 2  3 - 2 = 4

    0Thank You

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