Answer:
6. y=20
7. y=3
8. y=3
Step-by-step explanation:
Answer:
answer is 142
Step-by-step explanation:
U subtract 4x by 5x and then you add 3 by -21 and the answer is x=18
To do this, change into common denominators. The common denominator is 21 so change the problem from 1/3 + 1/7 to 7/21 + 3/21. This gives you 10/21. It is already in simplest form.