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 mik nhé
a) ( x - 34 ) x 15 = 0
x - 34 = 0 : 15
x - 34 = 0
x = 0 + 34
x = 34
b) 18 x ( x - 16 ) = 18
x - 16 = 18 : 18
x - 16 = 1
x = 1 + 16
x = 17
a) ( x - 34 ) . 15 = 0
=> x - 34 = 0
=> x = 34
b) 18( x - 16 ) = 18
=> x - 16 = 1
=> x = 17