Question

Tìm x bt: \(\frac{x-1}{x+5}=\frac{6}{7}\)( x khác -5)

Answer 1

\(\frac{x-1}{x+5}=\frac{6}{7}\)

\(\left(x-1\right).7=\left(x+5\right).6\)

\(7x-7=6x+30\)

\(7x-6x=30+7\)

\(x=37\)

Answer 2

\(\frac{x-1}{x+5}=\frac{6}{7}\)

=>(x-1).7=(x+5).6

=>x.7-7=x.6+30

=>x.7-x.6=30+7

=>x=37

Answer 3

\(x=37\)

k mk nha

mk k lại cho!

Answer 4

x - 1 / x + 5 = 6/7

(x - 1) x 7 = (x + 5) x 6

7x - 7 = 6x + 30

7x - 6x = 30 + 7

= > x = 37

Answer 5

x - 1 / x - 5 = 6 / 7

( x - 1 ) . 7 = ( x + 5)  . 6

7x - 7 = 6x + 30

7x - 6x = 30 + 7

x = 37

Answer 6

x - 1 / x - 5 = 6 / 7
( x - 1 ) . 7 = ( x + 5) . 6
7x - 7 = 6x + 30
7x - 6x = 30 + 7
x = 37

Answer 7

x - 1 / x - 5 = 6 / 7
( x - 1 ) . 7 = ( x + 5) . 6
7x - 7 = 6x + 30
7x - 6x = 30 + 7
x = 37

chúc bn hok tốt @_@

Answer 8

Vũ Thuỳ Linh:

\(\frac{x-1}{x-5}=\frac{6}{7}\)

\(\Rightarrow\left(x-1\right).7=\left(x+5\right).6\)

\(\Rightarrow7x-7=6x+30\)

\(\Rightarrow7x-6x=30+7\)

\(\Rightarrow x=37\)

:3. Chúc bạn học tốt!!!