Asked by chen
-7|2x+21|-7=42
set notation and solution
set notation and solution
Answers
Answered by
Reiny
-7|2x+21| = 49
|2x+21| = -7
no solution , since it violates the definition of absolute value.
|...| cannot be negative.
|2x+21| = -7
no solution , since it violates the definition of absolute value.
|...| cannot be negative.
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