Question 172685
6x + 9/3x - 15 * x - 5/4x + 6
I think you mean:
{{{((6x+9)/(3x-15))*((x-5)/(4x+6)))}}}
={{{(3*(2x+3)/(3*(x-5)))*((x-5)/(2*(2x+3))))}}}
={{{((2x+3)/((x-5)))*((x-5)/(2*(2x+3))))}}}  Cancel 3s
={{{((1)/((x-5)))*((x-5)/(2)))}}}  Cancel (2x+3)
= 1/2  Cancel (x-5)