Question

F (a) = 3a + 2, When
f(a) = 11

Answer 1

3

Explanation:

Think of "f(a)" like "y" in this context. You can set that equal to 11 and solve for a:

f(a) = 3a + 2

11 = 3a + 2

9 = 3a

3 = a

Answer 2

3a+2=11
3a=9
a=3

. . . .