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14-12-2018
Mathematics

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If the sum of two number is 19. Their difference is 3. What are the numbers?

Respuesta :

14-12-2018

x, y - the numbers

x + y = 19

x - y = 3 add both sides of the equations

2x = 22 divide both sides by 2

x = 11

Substitute the value of x to the first equation:

11 + y = 19 subtract 11 from both sides

y = 8

Answer: 11 and 8.

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