Question

Solve the equation: -|b+4|+1=10 Select one: a. b=-15 or b=7 b. no solution c. b=5 or b=-13 d. b=-5 or b=13

Answer 1

$-|b+4|+1=10\ \ \ |-1\\\\-|b+4|=9\ \ \ |change\ signs\\\\|b+4|=-9\ FALSE!$

Because for any x we have |x| ≥ 0!


Answer: b. NO SOLUTION.