B. She did not divide both sides by 12.
To solve the equation 12 - p = 16, Willow should have subtracted 12 from both sides first to isolate p. The correct steps should have been:
12 - p = 16
-p = 16 - 12
-p = 4
p = -4
Willow incorrectly skipped the step of dividing both sides by -1 to isolate p, which resulted in her getting p = 4 instead of the correct answer p = -4.
Willow solves the equation, 12 - p = 16 and gets that p = 4. What did she do wrong?
A. She added 12 to both sides.
B. She did not divide both sides by 12.
C. She did not multiply both sides by 12.
D. She did not divide both sides by -1.
1 answer
1 answer