а) When f(x) = 3:
5x - 7 = 3
5x = 10x = 2
Therefore, f(2) = 3.
б) When f(x) = -6:
5x - 7 = -6
5x = 1x = 0.2
Therefore, f(0.2) = -6.
а) When f(x) = 3:
5x - 7 = 3
5x = 10
x = 2
Therefore, f(2) = 3.
б) When f(x) = -6:
5x - 7 = -6
5x = 1
x = 0.2
Therefore, f(0.2) = -6.