Answer:
y= -10x +12
Step-by-step explanation:
1.2 liters
7/7 of a liter is one liter. and you still are only at 7. you need to get to 9 you and 2 1/7 liters and that becomes 9/7 liters which = 1.2
(x+y)
Thus, the HCF is (x+y).
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