Hoàng Thế Phong
Giới thiệu về bản thân
Mấy cái thằng sĩ dởm hay thích nói mấy câu ngầu ngầu
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2025-03-17 23:08:12
a, x-2/3=-5/12
x=-5/12+2/3
x=-5/12+8/12
x=-3/12
x=-1/4
Vậy x= -1/4
b, 8/5:x=-2/3
x=8/5:-2/3
x=8/5*-3/2
x=-24/10
x=-12/5
Vậy x = -12/5
c, 1-3/7*x=-2/7
3/7*x=1--2/7
3/7*x=9/7
x=9/7:3/7
x=9/7*7/3
x=9/3
x=3
Vậy x = 3
2025-03-15 15:15:59
a, -2/7+2/7:3/5
=-2/7+10/21
=6/21+10/21
=16/21
b, -8/19+-4/21-17/21+27/19
=(-8/19+27/19)+(-4/21-17/21)
=19/19+-21/21
=1+-1
=0
c, 6/5*3/13-6/5*16/13
=6/5*(3/13-16/13)
=6/5*1
=6/5
2025-03-13 17:01:49