1) 12(x-34) = 60012x - 1234 = 60012x - 408 = 60012x = 1008x = 84
2) (x-24)15 = 4515x - 1524 = 4515x - 360 = 4515x = 405x = 27
3) 320 / (38+x) = 4320 = 4*(38+x)320 = 152 + 4x4x = 168x = 42
4) (64-x) / 14 = 564-x = 5*1464-x = 70-x = 6x = -6
Ответ: x = 84, 27, 42, -6
1) 12(x-34) = 600
12x - 1234 = 600
12x - 408 = 600
12x = 1008
x = 84
2) (x-24)15 = 45
15x - 1524 = 45
15x - 360 = 45
15x = 405
x = 27
3) 320 / (38+x) = 4
320 = 4*(38+x)
320 = 152 + 4x
4x = 168
x = 42
4) (64-x) / 14 = 5
64-x = 5*14
64-x = 70
-x = 6
x = -6
Ответ: x = 84, 27, 42, -6