SOLUTION: If f(x-1)=2x+3 for all values of x, what is the value of f(-3)? A) -7 B) -5 C) -3 D) -1

Algebra ->  Absolute-value -> SOLUTION: If f(x-1)=2x+3 for all values of x, what is the value of f(-3)? A) -7 B) -5 C) -3 D) -1      Log On


   

Question 996335: If f(x-1)=2x+3 for all values of x, what is the value of f(-3)?
A) -7
B) -5
C) -3
D) -1
Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!
x-1 = -3
x-1+1 = -3+1
x = -2

Replace every x with -2
f(x-1)=2x+3
f(-2-1)=2(-2)+3
f(-3)=2(-2)+3
f(-3)=-4+3
f(-3)=-1

So the answer is D) -1