Решите уравнения!
1)570×X-4700=13540
2)340×X-416×2=18208
3)(223440-130×X):35=6020
4)(31×550-X)×120=10200

1) 570×X-4700=13540

570Х-4700=13540

570Х=13540+4700

570Х=18240

Х=18240:570

Х=32

2) 340×X-416×2=18208

340Х=18208+416×2

340Х=19040

Х=19040:340

Х=56

3) (223440 - 130 × X) : 35=6020

(223440 - 130X) = 6020 × 35

223440 - 130X = 210700

130Х = 223440 - 210700

130Х = 12740

Х = 12740 : 130

Х = 98

4) (31 × 550 - X) × 120=10200

(31 × 550-X) = 10200 : 120

31 × 550 - X = 85

Х = 31 × 550 - 85

Х = 17050 - 85

Х = 16965