Arturo O. answered 06/01/20
Tutor
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a + b = -3
a - b = -7
Add the 2 equations and get
2a = -10
a = -5
-5 + b = -3
b = 2
Daisy C.
asked 06/01/20Find two numbers a and b whose sum a+b is −3, and whose difference a−b is −7.Your answer is
Arturo O. answered 06/01/20
Experienced Physics Teacher for Physics Tutoring
a + b = -3
a - b = -7
Add the 2 equations and get
2a = -10
a = -5
-5 + b = -3
b = 2
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