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08-03-2020
Mathematics

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Find two numbers, if … d Their sum is − 1 3 and their difference is 18

Respuesta :

mathstudent55 mathstudent55

08-03-2020

Answer:

The numbers are -15.5 and 2.5.

Step-by-step explanation:

Let the numbers be a and b.

a + b = -13

a - b = 18

Add the two equations.

2a = 5

a = 2.5

a - b = 18

2.5 - b = 18

-b = 15.5

b = -15.5

The numbers are -15.5 and 2.5.

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