Question

Which equation is an identity?

Answer 1

5w +8-w = 6w -2(w-4)

4w +8 = 6w -2w +8

4w +8 =4w +8

This is an identity

7m-2 = 7m+4

8y+9 = 8y-3

11-2v-3 = -2v-8

8-2v = -2v-8

Answer 2

Answer:

$5w + 8 - w = 6w - 2(w - 4)$ is an identity

Step-by-step explanation:

Lets simplify equation equation and check

$5w + 8 - w = 6w - 2(w - 4)$

$4w + 8= 6w- 2w+ 8$

Combine like terms

$4w + 8=4w+8$ Both sides are equal

$7m - 2 = 8m + 4 - m$

$7m - 2 = 7m + 4$ both sides are not equal

$8y + 9 = 8y -3$ Both sides are not equal

$11 - (2v + 3) = -2v - 8$

$11 -2v - 3 = -2v - 8$

$-2v +8= -2v - 8$ both sides are not equal