3n+4=-5
do the opposite of adding 4. this means you have to subtract 4 from 4. whatever you do to the problem, you must do to the answer. now subtract 4 from -5.
-5-4=-9
since 4-4=0, we can take 4 out of the equation. now you have:
3n=-9
now divide -9 by 3
-9/3=-3
n=-3
hope this helps :)
Answer:
7x+5=7x+5 they are equal same lines
Step-by-step explanation:
Answer:
Answer: <u> </u><u> </u><u>3</u><u> </u><u>+</u><u> </u><u>1</u><u>0</u><u>i</u><u> </u>
Step-by-step explanation:

It's simple, divide 39 by 8 to get the ratio of 1:4.875
The first one is A because 8/100times 2 equals 16/200