Răspunsuri

2014-04-23T17:30:57+03:00
X- pret initial
x-10x/100=162
x-x/10=162
10x-x=1620
9x=1620
x=1620:9
x=180 lei
inseamna supra
adica 10x supra 100
multumesc
am simplifical cu 10 si a ramas doar x/10. si am amplif cu 10 pt a acea ac numitor
de acolo vine 10x-x=1620
2014-04-23T17:59:24+03:00
P-P*10/100=162 P-P/10=162 (10P-P)/10=162 9P=1620 P=1620/9 P=180 lei
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