Question

Using cross multiply how to you find what x equals in number 8

Answer 1

8) 
(x-7)/5=(x-9)/2

do × multiply to get to the next step:

2(x-7)=5(x-9)

use the distribution method and then solve for x as below:

2x-14=5x-45

-14=3x-45

3x=45-14

3x=31

x=31/3

Answer 2

Multiply each side by 5 and by 2 so you end up with:

2(x-7)=5(x-9)
2x-14=5x-45
2x-5x=-45+14
-3x=-31
x=10.333