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

Question

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

Answer 1

1. 2.9x +0.08x=45.6
2,98х=45,6
х=456/298=1целая158/298=1ц79/149

2. 7x +9x + 0.32 +2.72=??????

3. 2.4x-1.5x+47=1 919 
0,9х=1919-47=152
х=168 8/1520=168ц1/196