Answer:
f(4) =11
Step-by-step explanation:
f(x)=3x-1
Let x = 4
f(4)=3*4-1
= 12-1
= 11
x=5/4
the explantion would be to long lol
1) Open up any parentheses if there are any
2) Combine like terms (moving the variable to one side and other numbers to the other)
3) solve using pemdas/bedmas and any additional steps you need to isolate the variable
4) if x turns out negative, invert the sign
Example:
2x+5=3(x+1)
Open up the parentheses by multiplying it by 3
2x+5=3x+3
Combine like terms
2x-3x=3-5
-x=-2
x=2
I hope this helps!