Answer:
-7/10
Explanation:
You want the value of |a +3|÷(a -3) when a = -17.
Evaluation
Put the value where the variable is and do the arithmetic.
|-17 +3| ÷ (-17 -3)
= |-14| ÷ (-20) . . . . . . . . . . simplify
= 14/(-20) = -14/20 . . . . . absolute value
= -7/10 . . . . . . . . . . . . reduce the fraction
The value of the expression is -7/10.
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Additional comment
A calculator or spreadsheet can help.
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