1. 2.9x +0.08x=45.6
2. 7x +9x + 0.32 +2.72
3. 2.4x-1.5x+47=1 919
Уровнения

1. 2.9x +0.08x=45.62,98х=45,6х=456/298=1целая158/298=1ц79/1492. 7x +9x + 0.32 +2.72=??????3. 2.4x-1.5x+47=1 919 0,9х=1919-47=152х=168 8/1520=168ц1/196