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11-03-2020
Mathematics

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Find two numbers, if … b Their sum is −7 and their difference is 14

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14-03-2020

The numbers are 3.5 and -10.5

Step-by-step explanation:

Step 1: Sum of two numbers = -7. Let one number be x. Then, the other number = -7 - x. Difference = 14

⇒ x - (-7 - x) = 14

⇒ x + 7 + x = 14

⇒ 2x = 7

∴ x = 7/2 = 3.5

-7 - x = -7 - 3.5 = -10.5

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