Question

\(\frac{5}{x-2}=\frac{15}{6}\)

Answer 1

\(\frac{5}{x-2}=\frac{15}{6}=\frac{3.5}{3.2}=\frac{5}{2}\)

=> x - 2 = 2

=> x = 2 + 2

=> x = 4

Vậy x = 4

Answer 2

\(\frac{15}{6}=\frac{5}{2}\)

=> x-2=6

=>\(x=6+2\)

=>x=8

Answer 3

quên 

\(\frac{5}{2}=\frac{15}{6}\)

=>x-2=2

=>x=2+2

=>x=4

Answer 4

\(\frac{5}{x-2}=\frac{15}{6}\)

\(\frac{5}{x-2}=\frac{5}{2}\)

=> x -2 = 2

=> x= 4

vậy x =4

Answer 5

Rút gọn 15/6 = 5/2

Ta có: 5/x-2 = 5/2

Tử số bằng nhau thì mẫu số cũng phải bằng nhau. Vậy ta rút về dạng tìm x như sau:

x-2=2

x=2+2

x=4

Answer 6

\(\frac{5}{x-2}\)= \(\frac{3.5}{3.2}\)=\(\frac{5}{2}\)-

->x-2=2

->x=2+2

->x=4

Vậy x=4

Answer 7

`5/(x-2)=15/6`

`<=>5.6=15(x-2)`

`<=>30=15x-30`

`<=>15x=30+30`

`<=>15x=60`

`<=>x=60:15`

`<=>x=4`

Vậy `S={4}`