SOLUTION: If f(x) = -5x + 11 and f(n) = 21 , what is the value of n?

SOLUTION: If f(x) = -5x + 11 and f(n) = 21 , what is the value of n?

Algebra.Com

Question 851071: If f(x) = -5x + 11 and f(n) = 21 , what is the value of n?
Answer by josgarithmetic(39617) (Show Source): You can put this solution on YOUR website!
That just means, -5n+11=21.
n=2.
RELATED QUESTIONS
What is the value of n if f(x)=-5x+11 and... (answered by jim_thompson5910)

F(x) = -5x + 11 and f(n) = 21, what is the value of... (answered by Boreal)

If g(x) = 5x + 11 and f(b) = 21, What is the value of... (answered by Alan3354,ikleyn)

if f(1)=9 and f(n)=-3f(n-1)+n then what is the value of... (answered by ikleyn)

if f(1)=5 and f(n)=-2f(n-1)+2 then what is the value of... (answered by MathLover1)

let f(x)=x^2+3x and g(x)=2x. If f(n)=28, what is the value of... (answered by robertb)

Find the value of m and n in f(x)=mx + n if f(2)=7 and... (answered by josgarithmetic)

if f(1)=5 f(n)=4f(n-1)+1 then what is the value of f(3) (answered by MathLover1)

if 5^21*4^11=2*10^n what is value of... (answered by rapaljer)