Explain how to do 5n+3+4n=30

5n+3+4n=30 Combine like terms 9n+3=30 Subtraction property of Equality 9n=27 Division Property of Equality n=3

5n+3+4n=30

First you combine like terms ... So ... 5n+4n=9n

So now you have

9n+3=30

No you subtract 3 from both sides

And 3-3 cancels out and 30-3 is 27 so now you have

9n=27 now you divide 9 on both sides

9/9 cancels out and 27/9 equals 3

So your final answer is ...

N=3