How to solve f(x)=2x+1 when x=a-b?
2 answers:
Answer:f(2) = 3/2
Step-by-step explanation:
Let u = 2x-1.
Then x = (u+1)/2.
Substituting into f(2x-1) = x, we get f(u) = (u+1)/2.
Thus, f(2) = (2+1)/2 = 3/2.
Do a u-substitution!
Let u = 2x-1.
Then x = (u+1)/2.
Substituting into f(2x-1) = x, we get f(u) = (u+1)/2.
Thus, f(2) = (2+1)/2 = 3/2.
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