10x + 32 = 82
10x = 82 - 32
10x = 50
x = 50 / 10
Ответ: x = 5
17 - 3x = -13
-3x = -13 - 17
-3x = -30
x = -30 / (-3)
Ответ: x = 10
5x + 11 = 3x + 7
5x - 3x = 7 - 11
2x = -4
x = -4 / 2
Ответ: x = -2
x - 21 = 5 - x
x + x = 5 + 21
2x = 26
x = 26 / 2
Ответ: x = 13
31 - 2x = 3x + 1
-2x - 3x = 1 - 31
-5x = -30
x = -30 / (-5)
Ответ: x = 6
(2,6 - 4,3) ⋅ 2 - (7 - 5,2) ⋅ 8
(-1,7) ⋅ 2 - (1,8) ⋅ 8
-3,4 - 14,4
Ответ: -17,8