-x - 7 = x
-7 = x + x
-7 = 2x
x = -7/2 = -3.5
Ответ: x = -3.5
10(x - 3) = 7
10x - 30 = 7
10x = 37
x = 37/10 = 3.7
Ответ: x = 3.7
4(x - 6) = 5
4x - 24 = 5
4x = 29
x = 29/4 = 7.25
Ответ: x = 7.25
5(x + 4) = -9
5x + 20 = -9
5x = -29
x = -29/5 = -5.8
Ответ: x = -5.8
341x - 8 = -5
341x = 3
x = 3/341 ≈ 0.0088
Ответ: x ≈ 0.0088
4(x - 2) = -1
4x - 8 = -1
4x = 7
x = 7/4 = 1.75
Ответ: x = 1.75
4x - 4 = 16 + 2x
4x - 2x = 16 + 4
2x = 20
x = 10
Ответ: x = 10
5x - 5 = 17 + 3x
5x - 3x = 17 + 5
2x = 22
x = 11
Ответ: x = 11
6x - 6 = 18 + 4x
6x - 4x = 18 + 6
2x = 24
x = 12
Ответ: x = 12
x - 1 = 23 + 9
x = 33
Ответ: x = 33
8x - 8 = 21 + 7x
8x - 7x = 21 + 8
x = 29
Ответ: x = 29