1)636 : X + 139 = 145

2) 6 • X - 313 = 305

3) ( 223 - X ) • 5 = 605

4) 822 : ( X -198) = 3

5) 3 • (X+199) = 939

6) 666 : (X-115) = 6

7) 7 • (297-X) = 147

8) 624 : (X+23) = 4

9) 864 : X + 213 =221

10) 1512- 204: X = 1510

11) 3 • X + 627 = 945

Помогите пожалуйста

Спасибо большое

1) 636:х+139 = 145636:х = 145-139636:х = 6х = 636:6х = 1062) 6×х-313 = 3056×х = 305+3136×х = 618х = 618:6х = 1033) (223-х)×5 = 605223-х = 605:5223-х = 121х = 223-121х = 1024) 822:(х-198) = 3х-198 = 822:3х-198 = 274х = 274+198х = 4725) 3×(х+199) = 939х+199 = 939:3х+199 = 313х = 313-199х = 1146) 666:(х-115) = 6х-115 = 666:6х-115 = 111х = 111+115х = 2267) 7×(297-х) = 147297-х = 147:7297-х = 21х = 297-21х = 2768) 624:(х+23) = 4х+23 = 624:4х+23 = 156х = 156-23х = 1339) 864:х+213 = 221864:х = 221-213864:х = 8х = 864:8х = 10810) 1512-204:х = 1510204:х = 1512-1510204:х = 2х = 204:2х = 10411) 3×х+627 = 9453×х = 945-6273×х = 318х = 318:3х = 106