Помогите решить (x+38) - 59=125 3 * (x+15) = 186 2x+3x+16=51 x:4+5=16

1) (x + 38) - 59 = 125

x + 38 = 125 + 59

x + 38 = 184

х = 184 - 38

х = 146

проверка:

(146 + 38) - 59 = 125

184 - 59 = 125

125 = 125

2) 3 * (x + 15) = 186

3 х + 45 = 186

3 х = 186 - 45

3 х = 141

х = 141 : 3

х = 47

проверка:

3 * (47 + 15) = 186

141 + 45 = 186

186 = 186

3) 2x + 3x + 16 = 51

5 х = 51 - 16

5 х = 35

х = 7

проверка:

2 * 7 + 3 * 7 + 16 = 51

14 + 21 + 16 = 51

51 = 51

4) x : 4 + 5 = 16

х: 4 = 16 - 5

х: 4 = 11

х = 11 * 4

х = 44

проверка:

44 : 4 + 5 = 16

11 + 5 = 16

16 = 16