Answer:
N = 14
Step-by-step explanation:
Let the number be N. Then:
N + 7 = 21
Now solve this equation for N:
Subtract 7 from both sides. We get:
N = 14
Answer:
its d bc it is so yeah suck a toe hehehehehehehhehehehehehehehehhehehehehehehehehhehehehehhehehehehhehehehehehehehehehhehhehehehhhehehehehhehhehehehe
Answer:
Step-by-step explanation:
First one.
Second one
and last one