Question 111069
5/(X-1)=10/(X+9) NOW CROSS MULTIPLY
5(X+9)=10(X-1)
5X+45=10X-10
5X-10X=-10-45
-5X=-55
X=-55/-5
X=11 ANSWER.
PROOF
5/(11-1)=10/(11+9)
5/10=10/20
1/2=1/2