Question

Which equation is an identity?

3w + 8 – w = 4w – 2(w – 4)

8 – (6v + 7) = –6v – 1

5y + 5 = 5y – 6

6m – 6 = 7m + 9 – m

Answer 1

3w + 8 - w = 4w - 2(w - 4) is the identity.

- Prodixy ☕

Answer 2

3w + 8 - w = 4w - 2(w - 4)
is an identity
3w-w + 8 = 4w - 2w + 8
2w + 8 = 2w + 8
2w - 2w = 8 - 8
0 = 0
zero equal to zero implies that any value of w satisfies the statement 3w + 8 - w = 4w - 2(w - 4) hence it is an identity.