Question

Error Analysis The solution shown for the equation is

incorrect. What is the correct solution? What is the error?
-8(5-r)= 32
- 40 - 8r = 32
- 8r= 72
r = -9
The solution is Type the value of r.)

Answer 1

r=9

-8(5-r)=32

-40+8r=32

8r=72

r=9

error-in the first step when negative eight was multiplied by negative R it was meant to be a positive(because the two negatives cancel each other out), but instead it was made a negative. this threw the correct answer off course.