5(x-4)-13=17
5x – 20 – 13 = 17
5x = 17 + 13 + 20
5x = 50
x = 10
38:(х-12)-5=14
38:(х-12)=14+5
38:(х-12)=19
х-12=38:19
х-12=2
х=2+12
х=14
5(x-4)-13=17
5x – 20 – 13 = 17
5x = 17 + 13 + 20
5x = 50
x = 10
38:(х-12)-5=14
38:(х-12)=14+5
38:(х-12)=19
х-12=38:19
х-12=2
х=2+12
х=14