Question 489030
"y-8=-5/7(x+10)
 I was given the rest of the problem but do not understand how the numbers got to be what they were.
 y-8=-5/7x-50/7 How did they get the 50?"

The (-5/7) was distributed over (x+10), the 2nd part of which (+10) results in -5*10/7 = -50/7

"y=5/7x+6/7 and the same here, How did they get 6/7?"

[Note the leading "-" is missing]
8 was added to both sides, 8 = 56/7, - 50/7 = 6/7