Question

КАК РЕШИТЬ УРАВНЕНИЕ (y+1)*18=36+12*(y+1)И УРАВНЕНИЕ (R+5)*7-54=(R+5)*4 ПОМОГИТЕ

Answer 1

$1)(y+1)*18=36+12(y+1)\18y+18=36+12y+12\18y-12y=12+36-18\6y=30\y=5 \ \ 2)(r+5)*7-54=(r+5)*4\7r+35-54=4r+20\7r-4r=20+54-35\3r=39\r=13$