2n-5=21
add 5 to both sides
2n=26
divide both sides by 2
n=13
I hope I helped! :)
I got 20x-10 that the answer 100% positive
Answer:
3/8 gallons of water is in it.
Step-by-step explanation:
7/8-1/2=7/8-4/8=3/8
The answer would be -1/12 .
2/3 - -3/4=-1/12
2/3=8/12
-3/4=-9/12
8/12- -9/12=-1/12
Answer:

Step-by-step explanation:
Calculator work :)