Answer:
6/8 or 3/4
Step-by-step explanation:
Because the denominator is the same, just add all the numerators, 1+2=3, then 3+3=6. So 6/8 or when simplified, 3/4.
3(6-f)-4=3f-4
First is expand
18-3f-4=3f-4
Combine like terms
14-3f=3f-4
18-3f=3f
18=6f
f=3
X = -8
-7(x-5)=91
x-5=-13
x=-13+5
x=-8
4
the fourth expression is a rational
