Answer: Absolutely Never. No. He didn't do it correctly. Don't you do it.
I have never seen that error on Brainly before, although while I was teaching, I saw it enough times that I could always bet my math classes that I would see that error 100 times by the end of term. I always promised a case of beer for their grad (which would have given them 1 beer each). I never had to pay. They always made the error 100 times as a class.
Micah CANNOT cancel across a plus sign when going from the numerator to the denominator. You have to be able to take an x^2 out of every term or no term. Micah is totally wrong. Don't, whatever you do, follow his example.
Here is the only condition which will permit you that kind of cancellation.

Now Micah can cancel out the x^2. That is the only condition that will work.
Answer:
13- 60, 14- 30
Step-by-step explanation:
number 13 is a 60, 60,60 triangle
number 14 has two identical edges 2 of the corners are the same:
30, 30, 120
why not just ask the question here instead? :)
Answer:
The answer to your problem is 10
Step-by-step explanation:
tony is 5 years younger than Marvin's age 1 year from now.
t = (m+1) - 5
t = m - 4
6 years ago tony was half as old as marvin was then.
t - 6 = 1/2(m - 6)
Get rid of the fraction, multiply both sides by 2
2(t-6) = m - 6
2t - 12 = m - 6
2t = m - 6 + 12
2t = m + 6
from the first statement, replace t with (m-4)
2(m-4) = m + 6
2m - 8 = m + 6
2m - m = 6 + 8
m = 14 is Marvin's present age
:
how old is tony now?
t = 14 - 4
t = 10 yrs is tony's age
Answer:
15.71 is the total answer after rounding off