SOLUTION: I need help in my alg2 hw : Given f(x)=-2/3x +3 A.calculate f(3) B. solve f(x) =-5 Help im not good with fractions

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Question 640560: I need help in my alg2 hw :
Given f(x)=-2/3x +3
A.calculate f(3)
B. solve f(x) =-5
Help im not good with fractions
Found 2 solutions by jim_thompson5910, solver91311:
Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!
I'll do part A) to get you started

A)

f%28x%29=-%282%2F3%29x+%2B3

f%283%29=-%282%2F3%29%283%29+%2B3

f%283%29=-%282%2F3%29%283%2F1%29+%2B3

f%283%29=%28-2%2A3%29%2F%283%2A1%29+%2B3

f%283%29=%28-6%29%2F%283%29+%2B3

f%283%29=-2+%2B3

f%283%29=1

Answer by solver91311(24713) About Me  (Show Source):
You can put this solution on YOUR website!


Part A. Substitute 3 in place of and do the arithmetic.

Part B. Substitute -5 for and solve the resulting single variable equation.

John

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