Răspunsuri

2014-10-21T20:44:01+03:00
[(x+3):200+90]:10=10
(x+3):200+90=100
(x+3):200=10
x+3=2000
x=1997
7 4 7
2014-10-21T20:45:45+03:00
[(x+3) : 200+90] : 10 - 10 = 0
[(x+3) : 200+90] : 10 = 0 + 10 = 10
(x+3) : 200+90 = 10 x 10 =100
(x+3) : 200 = 100 - 90 = 10
x+3=200 x 10 = 2000
x+3=2000
x=2000-3
x=1997
7 5 7