Step-by-step explanation:
50-50+15d =125-50
15d = 75
15d/15=75/15
d=5
So, the negative would be divided out to make it 3, then square both sides to get rid of the square root and get 9, then subtract 15 and you get -6. <span />
You have to find out the solution first.
<em> </em>I am positive that the answer is D. Let me know if i got it wrong so i can fix it
