Practice 1. What property does this problem follow: 3(3x-2)= 9x-6 2. What property does this problem follow: 3+4=4+3 3. What property does this problem follow: 3+(4+5)= (3+4)+5 4. What property does this problem follow: 3 x 5= 5 x 3 5. What is the answer to this problem: 5(-4s+-90)=