The boy has saved 50 coins € 5 and € 2. He saved € 190. How many were € 5, and how many € 2?

Correct answer:

x =  30
y =  20

Step-by-step explanation:

x+y = 50
5x + 2y = 190

x+y = 50
5•x + 2•y = 190

x+y = 50
5x+2y = 190

x = 30
y = 20

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