Question

Given that f(x) = 2x + 5 and g(x) = x − 7, solve for f(g(x)) when x = −3.

Answer 1

For f(x)= 2x +5
f(-3)= 2(-3) +5
f(-3)= -6 + 5
f(-3)= -1
f(x)= -1

For g(x)= x - 7
g(-3)= -3 -7
g(-3)= -10
g(x)=-10