Answer:
9x-8x=107
x=107
Step-by-step explanation:
explanation is in image below
Yes, that like will divide the side in proportion
For this case we have the following expressions:

For 

For 

For
:

For any number, the expressions will be equivalent because 
ANswer:
and
have the same value for b = 1,2,3
Answer:
Step-by-step explanation:
Yes it is because all fractions are rationals