9(143-13x)=234 помогите плиз!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

а вот ещё поможете

17(5x-16)=238

238:17=14 14+16=30 30:5=6 х=6

cgfcb,j

спасибо огромное. !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!..........!!!!!!!☺☺☺☺⛲⛲⛲⛲⚓

234:9=26 143-26=117 117:13= 9   x=9

9(143-13x)=234143-13x=234:9143-13x=26143-26=13x117=13x117:13=x9=x-----------Ответ:9