book Maths Puzzle Numerical Ability

What is an "additive inverse," "associative," "distributive," "identity of multiplication," "communitive of addition," "communitive of multiplication."

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book Other Question

i MADE The mistake when I was solving equations and did this


The equation 2(x-2) = x +3
First step in solving 2x-2=x+3

What error did I make? How could I avoided it? thanks
I don't understand the absolute values of y=|x|
for instance... y= |x-2|
I don't understand what the domain and range are based on and how to graph it!
Please help!