First get n's by them selves
-6 = 10n -4n (remember to always change sign when crossing the equals sign.
-6 = 6n ( subtract and take sign of the larger) ( then divide both sides by 6 to solve for n)
-1 = n
hope this helps
<span>-4(6+n)+3=36
-24 -4n + 3 = 36
-4n -21 = 36
-4n = 36 + 21
-4n = 57
n = -57/4
n = -14.25</span>
Answer:
c
Step-by-step explanation:
100 seconds. The numbers on the left are seconds.
The fraction he added is 6/30, or 1/5.
I'm not 100% sure about the equation you want me to use but I did the work this way:
5/6+x/30=31/30 (the denominator has to equal 30 because you are adding. You need a common denominator which is why you need to change 5/6. We can label the numerator as a hidden value x)
25/30+x=31/30
You can then work backwards and basically subtract 25 from 31 and get 6; so x=6
