The sum of two numbers is 32 and the difference is 10 . what are the numbers?

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18-08-2017
Mathematics

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The sum of two numbers is 32 and the difference is 10 . what are the numbers?

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apologiabiology apologiabiology · Answer 1 · 2017-08-18T08:23:32+02:00

apologiabiology apologiabiology

18-08-2017

x and y are the numbers

x+y=32
x-y=10

such that x>y

so
add them equations

x+y=32
x-y=10 +
2x+0y=42

2x=42
divide both sides by 2
x=21

x+y=32
21+y=32
minus 21 both sides
y=11

the numbers are 11 and 21

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