One number is three less than two times another number. If the sum of the numbers is 15, find the numbers

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One number is three less than two times another number. If the sum of the numbers is 15, find the numbers

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Thu Cúc 5 years 2021-08-29T05:15:33+00:00 1 Answers 51 views 0

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  1. Edana
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    2021-08-29T05:16:35+00:00
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    9514 1404 393

    Answer:

      6, 9

    Step-by-step explanation:

    Let x represent one of the numbers. Then the other number is 15-x (because their sum is 15). The relation between the numbers is …

      2x -3 = 15 -x . . . . . three less than twice one number is the other number

      3x = 18 . . . . . . add 3+x

      x = 6 . . . . . . divide by 3

      15-x = 9 . . . . find the other number

    The two numbers are 6 and 9.

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