5X – 17 = 382X – 128 = 23
Bài 2: Tìm x biết:5x – 17 = 382x – 128 = 2
3
. 32
|x| = 37x – 33
= 27
: 24
(81 – x) – 32 = 1936 + (x – 19) = 5445 + (x – 6).3 = 60100 – 7(x – 5) = 58|x – 5| = 73
. 32
|x| = 37x – 33
= 27
: 24
(81 – x) – 32 = 1936 + (x – 19) = 5445 + (x – 6).3 = 60100 – 7(x – 5) = 58|x – 5| = 7