5класс решите уравнение: 1) 87 : (4х + 5) = 3 2) 17 * ( 3х - 16) = 85 3) 9 * (6х - 13) = 153 4) 3 * ( 8х + 51) = 201 5) (46х - 57) : 3 = 27 6) ( 19х + 62) : 15 = 13

1. 87 : (4х + 5) = 3
87:3=4x+5
29-5=4x
4x=24
x=6

2. 17 * ( 3х - 16) = 85
3x-16=85:17
3x=5+16
3x=21
x=7

3. 9 * (6х - 13) = 153
6x-13=153:9
6x=17+13
6x=30
x=5

4. 3 * ( 8х + 51) = 201
8x+51=201:3
8x=67-51
8x=16
x=2

5. (46х - 57) : 3 = 27
46x-57=27*3
46x=81+57
46x=138
x=3

6. (19х + 62) : 15 = 13
19x+62=13*15
19x=195-62
19x=133
x=7