Question

14. Which equation is an identity? (1 point)
11 – (2v + 3) = –2v – 8
5w + 8 – w = 6w – 2(w – 4)
7m – 2 = 8m + 4 – m
8y + 9 = 8y – 3

Answer 1

5w + 8 – w = 6w – 2(w – 4)

Answer 2

The second one. An identity is always true. 5w + 8 - w =6w -2w +8 Now simplify and you get 4w +8 = 4w + 8 which is 4w=4w therefore it is always true.

Answer 3

5w + 8 – w = 6w – 2(w – 4)
4w+8=6w-2w+8
4w+8=4w+8
0=0
which is always true, therefor this equation is an IDENTITY