Let x be the first number and y be the second number.
x + y = -18
x - y = 38
Solving the system of equations:
x + y = -18
x - y = 38
Add the equations:
2x = 20
x = 10
Substitute 10 for x in the first equation:
10 + y = -18
y = -28
The two numbers are 10 and -28.
Kasey is thinking of 2 munbers. The sum of the two numbers is -18. Their difference is 38. Write a system of equations that can be used to find the numbers.
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