Rozwiąż proporcję :
9x=7x+1262x=126x=63trudne ????????????????????????????????????? :DD
9x= 7x+126 | -7x
2x=126 | /2
x=63
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9x=7x+126
2x=126
x=63
trudne ????????????????????????????????????? :DD
9x= 7x+126 | -7x
2x=126 | /2
x=63