Question

There is a value of a such that subtracting a-4 from 4a+16 gives an answer of -25. What is that value of a?

(We suggest that you check your answer.)

Answer 1

4a+16 -(a-4) = -25

Answer 2

\((4a + 16) - (a-4) = -25\)

\(3a + 20 = -25\)

Find a..

Answer 3

Firstly subtract 20 from both the sides and then divide by 3 both the sides.. :)

Answer 4

ok