Tìm y :Biết Yx2+y/2=10
tim y
yx2+y/2=0
yx2/3-2/3=9/12
y=?
219,1+y:y<yx2+yx4-y<230,2-y+y
Tìm y biết :Yx4 +yx6 +yx8 +yx2 =200
tìm x/y.
a) (x/y+1/2)x4/5:2/3=1
b)x/y-1/7x3=17/42
c)1/5+x/yx2/3=26/45
d)2/5x x/y+1/2=19/30
Tìm Y:
yx7 3 yx2 7=2014
Giúp mk nhé
Yx1+Yx2+Yx3+....+Yx100=12625
720:(yx2+yx3)=2x3
ai nhanh nhất tick 3 cái