To solve the system of linear equations 3 x + 5 y = 2 and 6 x + 10 y = 8 by using the linear combination method, Laura correctly multiplied

Question

To solve the system of linear equations 3 x + 5 y = 2 and 6 x + 10 y = 8 by using the linear combination method, Laura correctly multiplied the first equation by –2 to get Negative 6 x minus 10 y = negative 4 and then correctly added the equations Negative 6 x minus 10 y = negative 4 and 6 x + 10 y = 8 to get 0 = 4. How many solutions are there to the system of equations?
0
1
2
4

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Thành Công 3 weeks 2021-08-22T18:13:03+00:00 2 Answers 0 views 0

Answers ( )

    0
    2021-08-22T18:14:24+00:00

    Answer:

    x = 1

    y = 1/5

    Step-by-step explanation:

    Given the system of linear equations

    x + 5 y = 2 …. 1 ×2

    6 x + 10 y = 8 …. 2×1

    ___,_______

    2x+10y = 4

    6x+10y = 8

    Subtract

    2x-6x = 4-8

    -4x = -4

    x = 1

    Substitute x =1 into 1

    x+5y = 2

    1+5y = 2

    5y = 2-1

    5y = 1

    y = 1/5

    Hence the solution to the system of equation is (1, 1/5)

    0
    2021-08-22T18:14:36+00:00

    Answer:

    is a:0

    Step-by-step explanation:

    those linear lines will never intersect

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Giải phương trình 1 ẩn: x + 2 - 2(x + 1) = -x . Hỏi x = ? ( )