Answer:
-4x-25
Step-by-step explanation:
Given F(x)=-7x-12 and g(x)=13-3x, we are to find the value of f-g
f-g = f(x)-g(x)
Substituting the given functions into the formula;
f(x)-g(x) = -7x-12 -(13-3x)
f(x)-g(x) = -7x-12-13+3x
f(x)-g(x) = -7x+3x-12-13
f(x)-g(x) = -4x-25
Hence the value of f(x)-g(x) is -4x-25
