-8x + 83 = 3x - 49
-8x - 3x = -49 - 83
-11x = -132
x = -132 / -11
x = 12
43 - 7z = 27 - 9z
-7z + 9z = 27 - 43
2z = -16
z = -16 / 2
z = -8
41 + 23y = 341 + 1
23y = 342 - 41
23y = 301
y = 301 / 23
y = 13.09
21x - 34 = 12x - 10
21x - 12x = -10 + 34
9x = 24
x = 24 / 9
x = 8 / 3
x = 2.67
-7(4x + 2) - 3 = -17
-28x - 14 - 3 = -17
-28x - 17 = -17
-28x = -17 + 17
-28x = 0
x = 0 / -28
x = 0
-4,8у + 7,2 = 3(2,4y + 4,8)
-4,8у + 7,2 = 7,2y + 14,4
-4,8y - 7,2y = 14,4 - 7,2
-12y = 7,2
y = 7,2 / -12
y = -0.6
-5 (0,6y - 1,8) = -2y + 8,5
-3y + 9 = -2y + 8,5
-3y + 2y = 8,5 - 9
-y = -0,5
y = 0.5
Ответ: в) x = 12; г) z = -8; д) y = 13.09; e) x = 2.67; г) x = 0; д) y = -0.6; e) y = 0.5