Mathematics
EustoliaFava
2015-10-28 19:32:27
Please help -1.6r+5=7.8
ANSWERS
Josef988
2015-10-28 23:31:47

hello :   -1.6r+5=7.8  -1.6r= - 5+7.8 -1.6 r = 2.8 r= - 2.8/1.6 r= - 7/4 

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