The sum 49

The sum of two rational numbers is -5. If one of them is -13/6, find the other.

Correct answer:

b =  -17/6

Step-by-step explanation:

a+b=−5 a=6−13​=−613​=−261​≐−2.1667  a+b=−5  b=−5−a=−5−6−13​=6−5⋅ 6​−6−13​=6−30​−6−13​=6−30−(−13)​=6−17​=−617​=−265​=−2.8333

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