Answer:
x = 2, y = -3
Explanation:
Given the simultaneous equation
7x+4y=2
9x-4y=30
Add both equations
7x + 9x = 2 + 30
16x = 32
x = 32/16
x = 2
Substitute x = 2 into equation 1
From 1;
7x + 4y = 2
7(2) + 4y = 2
14 + 4y = 2
4y = 2-14
4y = -12
y = -12/4
y = -3
Hence the solution to the equation is (2, -3)
