Solve the following pair of liner equations by Substitution Method x + y = 14 and x-y=4

Question

Solve the following pair of liner equations by Substitution Method
x + y = 14 and x-y=4

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Lyla 1 month 2021-08-13T01:09:57+00:00 2 Answers 0 views 0

Answers ( )

    0
    2021-08-13T01:11:09+00:00

    Step-by-step explanation:

    x-y=4

    x=4+y——-equation 1

    as x+y=14 then substituting equation 1 in it

    4+y+y=14

    4+2y=14

    2y=14-4

    2y=10

    y=5 substituting in equation 1

    x=4+y

    x=4+5

    x=9

    x=9,y=5

    0
    2021-08-13T01:11:54+00:00

    Answer:

    x=9,y=5

    Step-by-step explanation: let x= 14-y

    put x=14-y in x-y =4

    14-y-y=4

    14-2y=4

    14-4=2y

    10=2y

    y=5

    now, put y=5 in x+y=14

    x=14-5

    x=9

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