Answer:
(x,y)= (-3,1)
Explanation:
4x + 9y = -3 => eq(i)
8x + 12y = 12 => eq(ii)
We need to solve these equations to find the values of x and y.
Multiply eq (i) with 2 and then subtract both equations
8x + 18y = -6
8x + 12y = 12
- - -
__________
6y = -18
y= -18/6
y = -3
Putting value of y in eq(i)
4x + 9y = -3
x = -3
4(-3) + 9y = -3
-12 + 9y = -3
9y = -3+12
9y= 9
y= 9/9
y = 1
So, the value of x = -3 and y = 1
(x,y)= (-3,1)