Question

Which expression is equivalent to 7a - 8 - 2a + 4?

Answer 1

Answer:

a = 4/5 OR 5a - 4

Step-by-step explanation:

If you set it equivalent to 0:

7a - 8 - 2a + 4 = 0

5a - 4 = 0

5a = 4

a = 4/5

If you are only simplifying:

7a - 8 - 2a + 4

5a - 4