a)3x - 34 = 1
3x = 1 + 34
3x =35
x = 35 :3
x =11.(6)
3x + 19 = 3
3x = 3 - 19
3x = -16
x = -16 :3
x = -5,(3)
|x - 1| = 0
x =0+1
x =1 hoặc -1
4 |-2x -3 | = 8
|-2x -3 | =8 :4
|-2x -3 |= 2
|-2x - 3 | =2 hoặc |-2x -3 |= -2
-2x =2+3 -2x =-2+ 3
x =5 : -2 -2x = 1
x= -2.5 x = 1 : -2
x =-1
a,3x-34=1
=>3x=1+34
=>3x=35
=>x=35:3
=>x=\(\frac{35}{3}\)
b,3x+19=3
=>3x=3-19
=>3x=-16
=>x=(-16):3
=>x=\(\frac{-16}{3}\)
c,|x-1|=0
=>x-1=0
=>x=1
d,4|-2x-3|=8
=>|-2x-3)=8:4
=>|-2x-3|=2
TH1:-2x-3=2
=>-2x=2+3
=>-2x=5
=>x=5:(-2)
=>x=\(\frac{5}{-2}=-2,5\)
TH2:-2x-3=-2
=>-2x=(-2)+3
=>-2x=1
=>x=1:(-2)
=>x=\(\frac{1}{-2}=-0,5\)