Use addition properties to show that the expressions r equal at each step, indicate what propety u used?
(s+63)+19 and (63+19)+s
please show work and by the way i put my problem on the details because i didn't have any space left to write it
- Anonymous1 decade agoFavorite Answer
Addition has the property of associativity - i.e (a+b)+c = a+(b+c) for any numbers a,b and c.
So (s+63)+19 = s + (63+19)
Addition also has the property of commutativity - i.e. a+b = b+a for any numbers a and b.
So s + (63+19) = (63+19) + s