
Substract '-3.4x' at LHS nad the RHS of the above expression.

Add '4' on both LHS and RHs of the above expression.
Answer:
30.2
Step-by-step explanation:
No. of people don't like to be teacher
= 100% - 75% = 25%
<h3>

</h3>
So, 15 number of students doesn't like to be teacher
4 because 2cups of 1/2 cups=1cup
2x2=4