A new bottle of juice can be exchanged with three empty julce bottles. Alvin and his friend bought 5 bottles of juice and exchange for new juices
with the bottles that they drank. How many bottles of juice had they
drank?

15 i think

Step-by-step explanation:

5*3 is 15

is there any attachment? what are the equations?

an

y = 6x -3y -12

y +3y +12 = 6x

=> . x = { 2y / 3 +2 } this is equation of line in terms of x

=> . if line meets the x-axis the co-ordinates of meeting point would be ( x , 0 )

=> . x = 2 ( 0 ) / 3 + 2

=> . x = 2

so, the point is ( 2 , 0 )