Mathematics
Grade10
Easy

Question

Solve the system:
3x - 5y = 4
y = 4

  1. y = 4
  2. (8, 5)
  3. (8, 4)
  4. no solution

Hint:

In this question, we are given two system of equation , we have to find the value x and y. Make two equation , if (a1/a2) = (b1/b2) = (c1/c2) then it is infinitely many solutions, if  (a1/a2) = (b1/b2) ≠ (c1/c2) and if (a1/a2) ≠(b1/b2) then it is unique solution.

The correct answer is: (8, 4)


    Here we have solve the system of equation and find x and y.
    Firstly , we are given,
    3x - 5y = 4
    and y = 4.
    3x – 5y = 4 …(i)
    y = 4 …(ii)
    Substituting y from (ii) in (i), we get
    3x – 5(4) = 4
    3x - 20 = 4
    x = 8
    Therefore the system of equation of (x, y) is (8, 4).

    In this question, we have to find the system of equation.

    Related Questions to study

    card img

    With Turito Academy.

    card img

    With Turito Foundation.

    card img

    Get an Expert Advice From Turito.

    Turito Academy

    card img

    With Turito Academy.

    Test Prep

    card img

    With Turito Foundation.