Решите уравнения (56+24) + x=340+60

x - (60-25) = 540-300

x: (8•9) = 8•9

(750-25) •y=0

750-25•y=0

56+24+х=400

80+х=400

х=400-80=320

2) х-35=240

х=240+35=275

3) х: 72=72

х=72*72

х=5184

4) 725*у=0

у=0

5) 750-25 у=0

25 у=750

у=750:25=30

56+24+*=340+60. * - 6-25=540-300

56+24+*=400. * - 35=240

80+*=400. * = 240+35

*=400-80. * = 275

*=32

*: (8*9) = 8*9. (750-25) * ¥=0

*:72=72. 725*¥=0

*=5084. ¥=725

750-25*¥=0

25*¥=750

¥=750:25

¥=30