destinystanley796 destinystanley796

24-12-2017
Mathematics

contestada

The sum of two numbers is 161, while the difference of the two numbers is 23. what are the two numbers?

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ElenaClaudia ElenaClaudia

26-12-2017

we call : a, b - the numbers

a + b = 161

a - b = 23  ⇒ a = 23 + b

23 + b + b = 161

2b + 23 = 161

2b = 161 - 23

2b = 138 a = 23 + b

b = 138 : 2   a = 23 + 69

b = 69    a = 92

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Аноним Аноним

26-12-2017

a+b=161 +
a -b= 23
________
2a = 184
a = 92
b = 161 -92
b = 69

Answer Link

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