Answer:
10
Step-by-step explanation:
f(x) =3x-x=2x,
f(7-2)=f(5)= 2*5=10
To solve this plug 2 in for d in the equation like so:

The fraction
can be simplified to 2.
How I found this:
The greatest common factor of 8 and 4 is 4.
If we divide 8 by 4 you get 2
If you divide 4 by 4 you would get 1
That gives you the simplified fraction:
Which is the same as simply 2
Now we have the expression:
2 - 2
^^^ A number subtracted from itself is always zero
The answer is:
0
Hope this helped!
~Just a girl in love with Shawn Mendes
3 over 4 is already simplified. 15 over 12 is 5 over 4. If you are having trouble with the concept, www.ducksters.com/kidsmath/fractions_reducing_simplifying.php is a great guide
Answer: 4x+1
Step-by-step explanation:
