Đáp án:bài 2: a)x= -1
b) x=15
C)x=5
D)x= 5/7
E)
F)x=19
G)x =-25,5
H)x= -5/6
Giải thích các bước giải:
a) 3x-2=2x-3
=>3x-2x=-3+2
=>x=-1
b)7-2x=22-3x
=>-2x+3x=22-7
=>x=15
c)8x-3=5x+12
=>8x-5x=12+3
=>3x=15
=>x=5
d)5-(x-6)=4×(3-2x)
=>5-x+6=12-8x
=>-x+8x=12-6-5
=>x=5/7
e) 2x(x+2)^2-8x^2=2×(x-2)×(x^2+2x+4)
Mik ko ra dc kq
f)5x-2/3=5-3x/2
=>10x-4=15-9x
=>x=19
g)10+3/12=1+6+8x/9
=>3×(10x+3)=36+4×(6+8x)
=>30x-32x=36+24-9
=>x=-25,5
h)3x+2/2-3x+1/6=5/3+2x
=>3×(3x+2)-3x-1=10+12x
=>-6x=5
=>x=-5/6
