4) cross multiply to get 3(2x - 6) = 6; multiply
6x - 18 = 6; add 18 to both sides
6x = 24; divide both sides by 6
x = 4
5) cross multiply to get 3(5x + 4) = 11x; multiply
15x + 12 = 11x; subtract 15x from both sides
12 = -4x; divide both sides by -4
-3 = x
I hope this helps!
