Find the slope of the points (2, 13) and (8, 1)

-2

y2-y1/x2-x1
take the y coordinate of the second pair of coordinates and subtract it by the y coordinate of the first pair, then take the x coordinate from the second pair of coordinates and subtract it from the x coordinate from the first pair. then put your answer from the y coordinate over the answer from the x coordinates. 1 - 13 / 8 - 2, then you get -12/6, which simplifies to 2.

Hope this helps :)

X=3y-6
2(3y-6) + 5y = 21
6y - 12 + 5y = 21
11y = 33
y = 3

Therefore x = 3(3) -6
x = 3