a) => x-34=0 => x=34
b) => x-16=1 => x=17
Xong rùi bạn
a,(x-34).15 =0
<=> x-34 = 0
<=> x= 34
b, 18(x-16)=18
<=> x-16 = 1
<=> x= 17.
a)(x-34).15=0
-->x-34=0:15
-->x-34=0
-->x=0+34
-->x=34
b)18.(x-16)=18
-->x-16=18:18
-->x-16=1
-->x=1+16
-->x=17
k nha
a ) đề
x- 34 =0 (chia cho 15 rùi )
x= 34
b) đề :
x - 16 =1
x=17
( x -34 ).15 = 0 18 .(x - 16 ) =18
(x - 34) = 0 : 15 (x - 16 ) = 18 :18
(x - 34 ) =0 x - 16 = 1
x = 0 + 34 x = 16 + 1
x =34 x =17
a, (x-34).15=0
x-34 =0:15
x-34 = 0
x = 0+34
x = 34
b, 18.(x-16)=18
x-16= 18:18
x-16=1
x =1+16
x = 17
----------------Chúc bạn học giỏi :)-----------------------
a) ( x - 34 ) . 15 = 0
=> x - 34 = 0
=> x = 34
b) 18( x - 16 ) = 18
=> x -16 = 1
=> x = 17