Alegbra. slove the following simultaneous equation – 2x-7y=7; 3x+y=22​

Question

Alegbra. slove the following simultaneous equation …. 2x-7y=7; 3x+y=22​

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Elliana 3 months 2021-10-15T18:02:52+00:00 2 Answers 0 views 0

Answers ( )

    0
    2021-10-15T18:04:01+00:00

    Answer:

    x=7 ; y=1

    Step-by-step explanation:

    Step-by-step explanation:

    2x – 7y = 7 —————–1

    3x + y = 22 —————-2

    multiply whole eq. 2 by 7

    21x + 7y = 154 ———— 3

    Add ep. 1. and 3.

    2x – 7y = 7

    21x + 7y = 154

    23x = 161

    x = 161÷23

    x = 7

    Substituiting x = 7 in ep. 1

    2(7) – 7y = 7

    – 7y = 7 – 14

    – 7y = – 7 ( – and – cancel )

    7y = 7

    y = 7÷7

    y = 1

    the value of x any y is 7 and 1.

    i have solve this question by

    simultaneous method

    simultaneous methodif you are satisfy with my answer then

    mark me as a brainlist.

    mark me as a brainlist.if there is anything wrong then kindly rectify me

    0
    2021-10-15T18:04:15+00:00

    Answer:

    Brainly.in

    What is your question?

    vkhamble4

    19.12.2018

    Math

    Secondary School

    +5 pts

    Answered

    2x – 7y = 7; 3x + y = 22

    1

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    sayyadmohd78

    Sayyadmohd78Genius

    Answer:

    Step-by-step explanation:

    2x – 7y = 7 —————–1

    3x + y = 22 —————-2

    multiply whole eq. 2 by 7

    21x + 7y = 154 ———— 3

    Add ep. 1. and 3.

    2x – 7y = 7

    21x + 7y = 154

    23x = 161

    x = 161÷23

    x = 7

    Substituiting x = 7 in ep. 1

    2(7) – 7y = 7

    – 7y = 7 – 14

    – 7y = – 7 ( – and – cancel )

    7y = 7

    y = 7÷7

    y = 1

    the value of x any y is 7 and 1.

    i have solve this question by simultaneous method

    if you are satisfy with my answer then mark me as a brainlist.

    if there is anything wrong then kindly rectify me

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