a) (x – 10).11 = 22 b) 2x + 15 = –27 c) –765 – (305 + x) = 100
d) 2x: 4 = –16 e) 25 < 2x < 257 f) 3x – 10 = 2x + 13
g) (50 – 6x).18 = 23.32.5 h) 3(x – 2) + 2x = –31 i) 5.(12 – x ) – 20 = 30
k) 2.(x–1) + 3(x–2) = x–4 l) 6x + 24= 2x – 12 m) x + 8 = 10 – x
n) 14 + 4x = 3x + 20 q) 6x + 4x = 2020 q) 4.(2x + 7) – 3.(3x – 2) = 24
t) (75 + 79).(54 + 56).(33.3 – 92)=0 r) 3.(4 – x) – 2.( x– 1) = x + 2012
u) ( x + 1) + (x + 2) + (x+3) +…+ (x + 100) = 7450
Loga
Sinh Học lớp 12
