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17 votes
17 votes
(a) Pei has x dollars, when she passed her exam, her dad doubled her money and mum gave another $10. Altogether she got $100. i) Write a mathematical equation for this.​

User Jakub Piskorz
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1 Answer

15 votes
15 votes

Answer:

a: (x2)+10 = 100

Explanation:

and if you need an answer, x = 45

User Jizelle
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