4. The sum of two integers is -5 and their difference is 21. Find the integers.
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Answer:
8 and -13
Step-by-step explanation:
Let the integers be x and x-21
= x+x-21= -5
= 2x-21= -5
= 2x = -5+21
= 2x ÷ 16
= x = (16÷2) = 8
First integer = x = 8
Second integer = x-21 = 8- 21 = -13.
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