SOLUTION: this is asking me to divide and I finding a hard time this is what I have so far and feel like I cannot solve. 2x-6/21 dividing 5x-15/12 2x-6/21 x 12/5x-15 = 2(x+3)x x( ?

Algebra ->  Polynomials-and-rational-expressions -> SOLUTION: this is asking me to divide and I finding a hard time this is what I have so far and feel like I cannot solve. 2x-6/21 dividing 5x-15/12 2x-6/21 x 12/5x-15 = 2(x+3)x x( ?       Log On


   

Question 86293This question is from textbook algebra
: this is asking me to divide and I finding a hard time this is what I have so far and feel like I cannot solve.
2x-6/21 dividing 5x-15/12
2x-6/21 x 12/5x-15
= 2(x+3)x x( ? )
21(x-3)x ( ? )please help This question is from textbook algebra

Answer by scianci(186) About Me  (Show Source):
You can put this solution on YOUR website!
%282x-6%29%2F21 x 12%2F%285x-15%29
Once you've gotten this far, factor the 2x - 6 and the 5x - 15:
%282%28x+-+3%29%29%2F21 x 12%2F%285%28x+-+3%29%29
Now, let the (x - 3)s cancel each other out:
2%2F21 x 12%2F5
Cross-cancel the 21 and the 12 by a factor of 3:
2%2F7 x 4%2F5
Multiply outright:
2%2F7 x 4%2F5 = 8%2F35