Solve the following system:
-x-8y=-7
2x+8y=6

Step-by-step explanation:

If you add the equations together, the y terms are eliminated.

-x -8y = -7

2x + 8y = 6

x + 0y = -1

x = -1

plug the value of x into one of the equations and solve for y:

-(-1) - 8y = -7

-8y = -8

y = 1

(x,y) = (-1, 1)

answer: the 4 kilogram bag

step-by-step explanation: this is because if you divide the number of kilograms into the total it will tell you how much each individual kilogram would be worth. 2 kilos is 7 and change 3 would be around 6 ish and the 4 kilo would be 4.6 and change and the 5 kilos would be like 4.88