Given f(x)=3x+1, solve for x when f(x)=7
2 answers:
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Answer:
(x) =
Step-by-step explanation:
let y = 2x
Rearrange making x the subject
divide both sides by 2
= x
changing y back into terms of x
(x) =
Answer:
Step-by-step explanation:
The future value formula is FV=PV(1+i)^n, where the present value PV increases for each period into the future by a factor of 1 + i. value PV increases for each period into the future by a factor of 1 + i.
fv = future value
pv = present value
r = annual interest rate ( decimal number)
n= period