noname7
noname7
26-05-2016
Mathematics
contestada
Full in the missing reason for each step of proof?
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nobillionaireNobley
nobillionaireNobley
04-06-2016
5x + 3y + 2(x + y) = 5x + 3y + 2x + 2y . . . . . . . . (opening up the bracket)
= 5x + 2x + 3y + 2y . . . . . . . . (rearranging terms)
= 7x + 5y
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