h, 2/3x - 1/2 = 1/10
=> 2/3x = 3/5
=> x = 9/10
Vậy x = 9/10
k, -2/3 -1/3.(2x - 5) = 3/2
=> 1/3 . (2x - 5) = -13/6
=> 2x - 5 = -13/2
=> 2x = -3/2
=> x = -3
Vậy x = -3
m, (3x-1)(-1/2x+5) = 0
=> TH1: 3x - 1 = 0
=> x = -1/3
TH2: -1/2x + 5 = 0
=> -1/2x = -5
=> x = 10
Vậy x = -1/3 hoặc x = 10
n, I2x - 1I = 5
TH1: 2x - 1 = 5 TH2: 2x - 1 =-5
=> 2x = 6 => 2x = -4
=> x = 3 => x = -2
Vậy x= 3 hoặc x = -2
p, 2/3 + 1/3 : x = -1
=> 1/3 : x = 1/3
=> x = 1
Vậy x = 1
q, 1/2 x - 2/3 x = 7/12
=> (1/2 - 2/3) . x = 7/12
=> -1/6x = 7/12
=> x = -7/2
Vậy x = -7/2
ỦNG HỘ MIK NHA!!!!!!!!!!! CHÚC BN HỌC TỐT :)))))))))))))
