Question

Which equation is an identity?

3w + 8 – w = 4w – 2(w – 4)


–3y + 3 = –3y – 6


9 – (2v + 3) = –2v – 6


7m – 5 = 8m + 7 – m

Answer 1

The identity is 3w + 8 – w = 4w – 2(w – 4)

Explanation:

2w+8=4w−2(w−4)

2w+8=4w−2w+8

2w+8=2w+8

Since both sides equal so it is an identity