3x+12 = 18 3x = 18-12 3x = 6 x = 2
y = 3x = 12y = 12
no
3x-3x equal = 0
y equals 3x has the greater slope.
If x-3x=18 then x equals -9
3x + 2 = 3x + 6 This is not possible.
3x=81 3x/3=81/3x=27
3x-5=3x+5 There is no solution.
(2, -1)
y = 15 (by transitivity)
Their graphs are.