Question

Navor has $800 and is spending $30 per week. Rashid has $150 and is saving $20 per week. In how many weeks will Nabor and Rashid have the same amount of money?

Answer 1

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Define x :
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Let x be the number of weeks needed.

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Navor :
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Navor has $800 and is spending $30 per week:
800 - 30x

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Rashid :
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Rashid has $150 and is saving $20 per week:
150 + 20x

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Solve x:
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800 - 30x = 150 + 20x
50x = 800 - 150
50x = 650
x = 13

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Answer: They will have the same amount of money after 13 weeks.
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Answer 2

They will have the same amount of money at week 13 with $410 for each of them