Question

Tìm X:

a, x/-6=-10/3
b,-25/x=-5/2
c,-6/7=x/-14
d,-8/3=-16/x
e,x/4=-3/6
i,-40/3=-80/-x
g,30/-x=-3/2
h,-20/-7=-x/14

Answer 1

a.20

b.10

c.12

d.6

e.-2

i.-6

g.20

h.-40

Explanation:

a)x/-6=-10/3=10/-3=20/-6

=>x=20

b)-25/x=-5/2=-25/10

=>x=10

c)-6/7=6/-7=12/-14=x/-14

=>x=12

d)-8/3=-16/6=-16/x

=>x=6

e)x/4=-3/6=-1/2=-2/4

=>x=-2

i)-40/3=-80/6=-80/-x

=>-x=6

=>x=-6

g)30/-x=-3/2=3/-2=30/-20

=>-x=-20

=>x=20

h)-20/-7=20/7=40/14=-x/14

=>-x=40

=>x=-40

Co gì khong hieu hoi mình nha