Answer:
(x,y) = (-6.12,-11.76)
Explanation:
2x+4y=-48 => eq(i)
4x-9y=57 => eq(ii)
We need to solve these equations simultaneously to find the values of x and y.
Multiplying eq(i) with 2 and subtracting both equations
4x + 16y = -96
4x - 9y = 57
- + -
__________
25 y = -153
y = -153/25
y = -6.12
Putting value of y in eq(i)
2x + 4(-6.12) = - 48
2x - 24.48 = -48
2x = -48 + 24.48
2x = -23.52
x= -23.52/2
x= -11.76
So, values of x and y are -6.12 and -11.76
(x,y) = (-6.12,-11.76)