Rozwiąż układ :
[x+y]*245=500
[y-x]*600=500
Proszę jakoś czytelnie ;)
245(x+y)=500 | :245
600(-x+y)=500 | :600
x+y = 500/245
-x+y = 5/6
x+y = 100/49
___________
2y = 2 i 2/49 + 5/6
2y = 2 i 12/294 + 245/294
2y = 2 i 257/294
2y = 845/294 |*1/2
y = 845/588 = 1 i 257/588
y = 1 i 257/588
x = 2 i 2/49 - 1 i 257/588
x = 2 i 24/588 - 1 i 257/588
x = 1 i 612/588 - 1 i 257/588
x = 355/588
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245(x+y)=500 | :245
600(-x+y)=500 | :600
x+y = 500/245
-x+y = 5/6
x+y = 100/49
-x+y = 5/6
___________
2y = 2 i 2/49 + 5/6
2y = 2 i 12/294 + 245/294
2y = 2 i 257/294
2y = 845/294 |*1/2
y = 845/588 = 1 i 257/588
y = 1 i 257/588
x+y = 100/49
y = 1 i 257/588
x = 2 i 2/49 - 1 i 257/588
y = 1 i 257/588
x = 2 i 24/588 - 1 i 257/588
y = 1 i 257/588
x = 1 i 612/588 - 1 i 257/588
x = 355/588
y = 1 i 257/588