the sum of two numbers is eighteen their difference is eight

the sum of two numbers is18. their difference is 8

a.if the numbers are x and y, write a system of equations to describe their sum and their difference

b. solve the system to find the numbers
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1 Answer

a)

x + y = 18

x - y = 8

b)

2x + 0y = 26

2x = 26

x = 13

x + y = 18

13 + y = 18

y = 5

One of the numbers is 13.  The other number is 5.
by Level 13 User (103k points)

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