Question

Tyler is simplifying the expression 6−2x+5+4x . Here is his work:


6−2x+5+4x

(6−2)x+(5+4)x

4x+9x

13x



a. Tyler’s work is incorrect. Explain the error he made.

Answer 1

Answer:

6-2x+5+4x=0

4x-2x= -6-5

2x= -11

x= -11/2

x= -5,5