In the dairy

There were three times more packages of milk in the dairy than half a liter. When sold 10 liter and ten half-liter containers, four times more liters remained than half-liter packages. How many packages were there originally?

Correct result:

a =  210
b =  70

Solution:


a=3b
a-10 = 4•(b-20)

a=3•b
a-10 = 4•(b-20)

a-3b = 0
a-4b = -70

a = 210
b = 70

Our linear equations calculator calculates it.



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