The sum of two numbers is 11. Twice the first number minus the second number is 7 Find the numbers.​

Question

The sum of two numbers is 11. Twice the first number minus the second number is 7
Find the numbers.​

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Vodka 3 years 2021-08-12T13:22:22+00:00 2 Answers 9 views 0

Answers ( )

  1. minhkhang
    0
    2021-08-12T13:23:42+00:00
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    Answer:

    6 and 5

    Step-by-step explanation:

    6 * 2 = 12

    12 – 5 = 7

    6 and 5 is your answer

  2. thugiang
    0
    2021-08-12T13:24:02+00:00
    Reply

    Answer: 6; 5

    Step-by-step explanation:

    Based on the questions, we set up two equations, let the x be the first number, and y be the second number.

    x + y = 11

    2x – y= 7

    x = 11 – y              [Subtract y from both side]

    2x – y = 7

    2(11 – y) – y = 7    [Plug in 11-y for x, solve for y]

    22 – 2y – y = 7  

    22 – 3y = 7        

    -3y = -15             [Subtract 22 from both side]

      y = 5

     

    x + y = 11             [Plug in 5 for y, solve for x]

    x + 5 = 11             [Subtract 5 from both side]

         x = 6

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