# SOLUTION: I need help on few questions. Thanks 1. mn=nm 2. (3r+2)+s=3r+(2+s) 3. If 3x=15 then 15=3x

Algebra ->  Algebra  -> Real-numbers -> SOLUTION: I need help on few questions. Thanks 1. mn=nm 2. (3r+2)+s=3r+(2+s) 3. If 3x=15 then 15=3x      Log On

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 Algebra: Real numbers, Irrational numbers, etc Solvers Lessons Answers archive Quiz In Depth

 Question 409039: I need help on few questions. Thanks 1. mn=nm 2. (3r+2)+s=3r+(2+s) 3. If 3x=15 then 15=3xAnswer by MathLover1(6622)   (Show Source): You can put this solution on YOUR website! Basic Number Properties: ,, and The word "" comes from "associate" or "group";the Property is the rule that refers to grouping. For , the rule is ""; in numbers, this means . For , the rule is ""; in numbers, this means . The word "" comes from "commute" or "move around", so the Property is the one that refers to moving stuff around. For addition, the rule is ""; in numbers, this means . For multiplication, the rule is ""; in numbers, this means . The Property is easy to remember, if you recall that "multiplication distributes over addition". Formally, they write this property as . In numbers, this means, that . 1..........here you have the Property-the rule for multiplication 2. .....the Property- the rule for 3. If then ...the Property-the rule for multiplication