Toán Lớp 7: Tim x : 1/x-1 =1/2 moi nguoi giup e voi .
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Toán Lớp 7: Tim x : 1/x-1 =1/2 moi nguoi giup e voi .
Comments ( 2 )
1/(x-1) =1/2
<=>x-1=2
<=>x=2+1
<=>x=3
Vậy x=3
@thew
$\frac{1}{x – 1}$ = $\frac{1}{2}$
⇒ x – 1 =2
x = 2+ 1
x = 3
$\text{ Vậy x =3}$