Question

1.2.RE-2

Error Analysis The solution shown for the equation is
incorrect. What is the correct solution? What is the error?
– 9(5-1) = 18
- 45 -9r = 18
- 9 = 63
r = -7
The solution is (Type the value of r.)
1

Answer 1

7

Explanation:

the mistake they made is not changing the 9r to a positive. A negative and a negative make it positive