Math

Question

If 3x - 2y = 5 and 3y - 2x = 3 then find m if m = 3x + 4y

2 Answer

  • here is your answer mate

  • Answer:

    139/5

    Step-by-step explaination:

    Given :

    → 3x - 2y = 5 ...(1)

    → 3y - 2x = 3 ...(2)

    First add these two equations, we get

    x + y = 8 ...(3)

    Second subtract these equations, we get

    → 5x - 5y = 2

    → 5(x - y) = 2

    x - y = 2/5 ...(4)

    Now, add (3) and (4), we get

    → 2x = 8 + 2/5

    → 2x = 42/5

    x = 21/5

    Put this value in (3), we get

    → 21/5 + y = 8

    → y = 8 - 21/5

    y = 19/5

    Now,

    → m = 3x + 4y

    Putting value of X and y.

    → m = 3(21/5) + 4(19/5)

    → m = 63/5 + 76/5

    → m = 139/5

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