+73 What is the x-coordinate of the solution of the system y = 1/3x + 8 and 2x - y = 2?
+129839 y = 1/3x + 8 and 2x - y = 2
Rearrange the second as y = 2x - 2
Set these y's equal and we have that
(1/3)x + 8 = 2x - 2 add 2 to both sides, subtract (1/3)x from both sides
10 = 2x - (1/3) x
10 = 6/3 x - 1/3 x
10 = 5/3 x multiply both sides by (3/5)
10 (3/5) = x = 30 / 5 = 6
