There are two urns, each of them containing two blue balls and two red balls. We randomly draw two balls from the first urn and
then randomly draw two balls from the second urn, without returning any balls. What is the probability that all of the four balls that we drew are blue
Isolate x by adding 8 to both sides. 3 = x/3 Then, multiply by 3 on both sides. 9 = x To prove that this is right, you can imput 9 into the equation and it equals -5.