34 - 2*(2x - 9) = 2834 - 4x + 18 = 2852 - 4x = 28-4x = 28 - 52-4x = -24x = -24 / -4x = 6
Ответ: x = 6.
34 - 2*(2x - 9) = 28
34 - 4x + 18 = 28
52 - 4x = 28
-4x = 28 - 52
-4x = -24
x = -24 / -4
x = 6
Ответ: x = 6.