Question

Решите уравнение: 1) 8(x-14)=56 2)
(46-x)*19=418 3) 9(143-13x)=234 4) 17(5x-16)=238

Answer 1

1)
8(x-14)=56
x-14=56:8
x-14=7
x=7+14
x=21

2) (46-x)*19=418
46-x=418:19
46-x=22
x=46-22
x=24

3)
9(143-13x)=234
143-13x=234:9
143-13x=26
13x=143-26
13x=117
x=117:13
x=9

4)
17(5x-16)=238
5x-16=238:17
5x-16=14
5x=14+16
5x=30
x=30:15
x=2