algebra
posted by sharon .
name the property that justifies (2.6) +7 = 7+(2.6)

algebra 
helper
Commutative Property (think commute or move around)is the one that refers to moving stuff around.
For addition, the rule is a + b = b + a
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algebra 
michael
what property of real numbers justifies 7+(3+2x)=(7+3)+2x ?

algebra 
Anonymous
comm. property of addition
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