Two melons

There are two melons in the box. Together they weigh 11 kg. The weight of green is 3 kilograms lower than three times the weight of yellow. What is the weight of a green melon?

Correct answer:

x =  7.5 kg

Step-by-step explanation:


x+y = 11
x = 3·y-3

x+y = 11
x-3y = -3

Row 2 - Row 1 → Row 2
x+y = 11
-4y = -14


y = -14/-4 = 3.5
x = 11-y = 11-3.5 = 7.5

x = 15/2 = 7.5
y = 7/2 = 3.5

Our linear equations calculator calculates it.



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