SOLUTION: Please help I am not sure how to do this problem. Thank you in advance determine the truth value of the statement. 17 + 4 = 21, and 155 = −7 or 3 − 9 = −6

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Question 469757: Please help I am not sure how to do this problem. Thank you in advance

determine the truth value of the statement.
17 + 4 = 21, and 155 = −7 or 3 − 9 = −6.
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
determine the truth value of the statement.
17 + 4 = 21
True
=================
? and 155 = −7
Note: Either something is missing
or this is an open statement which
is true if ? = -162.
===================
3 − 9 = −6
True
================
Cheers,
Stan H.
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