1. 45х + 72 = 207
45х = 207-72
45х = 135
х = 135/45
х=3
2. (a - 7) : 184 = 46
(a - 7) = 46*184
a - 7 = 8464
a = 8464+7
a =8471
1. 45х + 72 = 207; 45х = 207-72: 45х = 135; х = 135/45; Х=3.
2. (a - 7) : 184 = 46; (a - 7) = 46*184; a - 7 = 8464; a = 8464+7; a =8471.
1. 45х + 72 = 207
45х = 207-72
45х = 135
х = 135/45
х=3
2. (a - 7) : 184 = 46
(a - 7) = 46*184
a - 7 = 8464
a = 8464+7
a =8471
1. 45х + 72 = 207; 45х = 207-72: 45х = 135; х = 135/45; Х=3.
2. (a - 7) : 184 = 46; (a - 7) = 46*184; a - 7 = 8464; a = 8464+7; a =8471.