4-(27-3)=x-(13-4)
4-27+3=x-13+4
4-24=x-9
-20=x-9
x=-20+9
x=-11
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4-(27-3)=x-(13-4)
4-27+3=x-13+4
4-24=x-9
-20=x-9
x=-20+9
x=-11
x+800=1000-900
ai k mk rui mk k lai
3 cai k va nhan tin
x+100=200-300
ai k mk rui mk k lai
x+90+10=100-40
ai k mk rui mk k lai
x+100=200-100-100
ai k mk rui mk k lai
x+200=300-400-500
ai k mk rui mk k lai
x+100=300-500+100
ai k mk rui mk k lai
x+100=50.2+100-100+200 -800+1000
ai k mk rui mk k lai
Tìm số nguyên x ,biết:
a, 7-x=8-(-7)
b, x-8=(-3)-8
ai k mk rui mk k lai
\(x+100=200.5+100\)
ai k mk rui mk k lai