# Apples and pears

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#### Storyboard Description

A young boy asks his father about equation systems

#### Storyboard Text

• Emm... Son, do you need help?﻿
• I don't think you know equation systems ﻿
• You bet I can do it. Bring it ﻿
• Well, can you help me with equation systems?  ﻿
• Let me think how I can explain you﻿
• Okay, it says that: x+2y= 40 and 2x+y=50
• I know! Imagine that one chocolate and two ice creams costs 40 and two chocolates and one ice cream 50
• 2(x+2y=40) -1(2x+y=50﻿) 4y=80 -y=-50 3y=30 y=10
• -1(x+2y=40) 2(2x+y=50) -x=-40 4x=100 x=25
• Well, the chocolate cost \$25 and the ice cream \$10?
• I think that now you understand
• OMG, so easy an I couldn't understand until now
• Let's go have dinner!
• Yup, i'm hungry
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