Answer:
x= -3 and y = 6.8
Step-by-step explanation:
-4.2+y=19.4
y=4.2x+19.4
4.2x+8y=41.8
4.2x+8(4.2x+19.4)=41.8
37.8x+155.2=41.8
37.8x=-113.4
x=-113.4/37.8
x=-3
