Question

Error Analysis The solution shown for the equation is

incorrect. What is the correct solution? What is the error?
-7(2-1) - 21
-14-7-21
- 7 = 35
r-5
The solution is (Type the value of r)

Answer 1

-28

Explanation:

-7 (2-1)-21

-7 (2-1)=-7

-7-21=-28