(х-23)*5=40х-23 = 40:5х-23 = 8х = 23+8х = 318*х+40=1128*х = 112 - 408*х = 72х = 72:8х= 9
(Х-23)*5=40
5х-115=40
5х=40+115
5х=155
х=31
8*Х+40=112
8х=112-40
8х=72
х=9
(х-23)*5=40
х-23 = 40:5
х-23 = 8
х = 23+8
х = 31
8*х+40=112
8*х = 112 - 40
8*х = 72
х = 72:8
х= 9
(Х-23)*5=40
5х-115=40
5х=40+115
5х=155
х=31
8*Х+40=112
8х=112-40
8х=72
х=9