Difference 13903

The sum of two integers is three, and their difference is 7. Determine the unknown numbers.

Correct answer:

a =  5
b =  -2

Step-by-step explanation:


a+b=3
a-b =7

a+b = 3
a-b = 7

Row 2 - Row 1 → Row 2
a+b = 3
-2b = 4


b = 4/-2 = -2
a = 3-b = 3+2 = 5

a = 5
b = -2

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