(x-34).15=0
(x-34) =0:15
(x-34) =0
x =0+34
\(\Rightarrow\)x=34
18.(x-16)=18
(x-16)=18:18
x-16=1
\(\Rightarrow\)x=17
( x - 34 ) x 15 = 0
=> x - 34 = 0
=> x = 34 + 0 = 34
18 x ( x - 16 ) = 18
=> x - 16 = 1
=> x = 16 + 1 = 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 = 1 + 16
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
k cho minh nha