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2014-10-23T21:01:45+03:00
=(9/3-7/3)²:2/3-75/100=x/24                                  75/100=simplif.cu 25=3/4
(2/3)²·3/2-75/100=x/24
2/3-3/4=x/24
(8-9)/12=x/24
-1/12=x/24
2x=-24
x=-24/2
x=-12