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the sum of two numbers is 30. The difference between the two numbers is 15. what are the two numbers?

User Volo
by
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1 Answer

1 vote
x + y = 30
15 + y + y = 30
15 + 2y = 30
2y = 15
y = 7.5

x + y = 30
x + 7.5 = 30
X = 22.5
User STerrier
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