Answer:
x =-1 y=4
Step-by-step explanation:
-1 ×4 is -4. 2×4 is 8
8 +-4 =4
x = 27976.22021
10x + .0085x = 280000
Combine like terms
10.0085x = 280000
Divide by 10.0085 on each side
10.0085x /10.0085= 280000/10.0085