Answer:
x= -1
y= 4
Explanation:
we calculate y first, since both given equation has the same x we can minus the bottom one with the top one
so 4x + 6y =20
- 4x + 3y =8
so 3y = 20-8
= 12
1y= 12/3
y= 4
so for x now since we know the y, we can solve easily,
4x + 3y = 8
4x + 3(4) = 8
4x + 12 = 8
4x = 8-12
4x = -4
x = -4/4
x = -1