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MATH

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system of linear equation

The sum of 3 numbers is 14
the largest is 4 times the smallest
the sum of the smallest and twice the largest is 18
what are the 3 numbers? show work?

A. how many unknowns you have?
-how many equations need to be solve for that many unknown?

B. what are the equations?

C. used the system of equations using matrices.

  • MATH -

    X = Smallest #.
    4X = Largest @.
    X+ 8X = 18.
    9X = 18,

    X = 2.
    4X = 4*2 = 8.
    14 - 10 = 4 = Middle #.

    A. 1 unknown: X.

    B. X = Smallest #.
    4X = Largest #.
    X + 8X = 18.

    C.

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