9(143-13х)=234. 17(5х-16)=238

Question

9(143-13х)=234. 17(5х-16)=238

Answer 1

9*( 143- 13х)= 234
143- 13х= 234: 9
143-13х= 26
13х= 143-26
13х=117
х= 117:13
х=9
17*(5х-16)=238
5х-16= 238: 17
5х-16= 14
5х= 14+ 16
х= 30: 5
х= 6

Answer 2

9(143-13х)=234
1287-117x=234
-117x=234-1287
-117x=-1053     |:(-117)
x=9

17(5х-16)=238
85x-272=238
85x=238+272
85x=510    |:85
x=6