Answer:
x=1/2
Step-by-step explanation:
Here is your answer
a) 5x-2y= 1
REASON:
6-2(x-y)=3x+5
6-2x+2y= 3x+5
3x+2x-2y= 6-5
5x-2y= 1
HOPE IT IS USEFUL
x=9
128 ×5=640 so 128 people so after 4weeks