Answer:
x=3
Step-by-step explanation:
4x-x=9
3x=9
x=3
6-3+5•2=16 is the answer to ur problem
Total questions are 30.
70% of 30
=30(70/100)
=21
So, the questions can be wrong are 30-21.
=9 questions..
Thanks!
The answer is 4 1/3. Would you like an explanation?