3
QuizMultiple Choice
Unit Test
Question 3 of 15 • Math 7 B (M12 25/26 S2)
Adler and Erika solved the same equation using the calculations below. Adler’s WorkErika’s WorkWhich statement is true about their work?
Answer
A
Neither student solved for k correctly because .
B
Only Adler solved for k correctly because the inverse of addition is subtraction.C
Only Erika solved for k correctly because the opposite of is .
D
Both Adler and Erika solved for k correctly because either the addition property of equality or the subtraction property of equality can be used to solve for k.