Answer:
y = 12
Step-by-step explanation:
Step 1: Simplify both sides of the equation.
15 - 4y = - 21 - y
15 + - 4y = - 21 + - y
- 4y + 15 = - y - 21
Step 2: Add y to both sides.
- 4y + 15 + y = - y - 21 + y
- 3y + 15 = - 21
Step 3: Subtract 15 from both sides.
- 3y + 15 - 15 = - 21 - 15
- 3y = - 36
Step 4: Divide both sides by - 3.
- 3y/- 3 = -36/- 3
y = 12
I am so sorry if it is long and confusing, but, I hope this still helps!
Answer:
The mean is 13
Step-by-step explanation:
First you add up all of the numbers. In this case, it is 52.
Then you divide the number 52 by the number of number there are. In this case, there are 4 numbers.
After you do that you get the answer 13.
<em>Hope this helped :) !!!!</em>
<em>Please mark the brainliest</em>
Answer:its about the exact answer the answer is 78.76
Step-by-step explanation:
I chose exact answer becase the answer is 78.76
