Question

Activity 2
Sum of two numbers is 15, their difference is 7. What are the numbers?
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Answer 1

Answer:

Numbers = 11, 4

Step-by-step explanation:

Let the numbers be x, y

Sum = 15

x+y = 15

Difference = 7

x-y = 7

(x+y)+(x-y) = 15+7 = 22

2x = 22

x = 22 ÷ 2 = 11

y = 15 - x = 15 - 11 = 4

Numbers = 11, 4

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