Answers

2015-11-26T22:09:36+08:00
For all real numbers a,b,c and d, if a=b and c=d, then a+c = b+d.
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2015-11-27T16:18:04+08:00
Addition Property of Equality was used in solving algebraic expression. For example:
x-10=25
x-10+10=25+10 (A.P.E)
x=35
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