Mathematics
Grade10
Easy
Question
Solve the system:
3x - 5y = 4
y = 4
- y = 4
- (8, 5)
- (8, 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.
