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2010-03-31T13:09:58+02:00
X*5,5+(1200-x)*11 = 350
5,5x+13200-11x = 350
-5,5x+13200 = 350
13200-350 = 5,5x
5,5x = 12850 |:5,5
x = 2336 i 4/11
2010-03-31T13:10:36+02:00
X×5,5+(1200-x)×11=350
5,5x+13200-11x=350
-5,5x=350-13200
-5,5x=-12850
x=12850:5,5
x=2336⁴/₁₁
  • Użytkownik Zadane
2010-03-31T13:11:16+02:00
X * 5,5 + (1200-x) * 11 = 350
5,5x+13200-11x=350
-5,5x=350-13200
-5,5x=-12850
x=128500/55
x=2336i20/55
x=2336 i4/11