Question

  tìm x

2(x-23)-(x-43)= -19  

 

 

 

Answer 1

2(x-23)-(x-43)= -19  

<=> 2x - 46 - x + 43 = -19

<=> x - 3 = -19 

<=> x = -19 + 3 

<=> x = -16

tivk nhak Dang Thi Lien

Answer 2

2x-46-x+43=-19

x-3=-19

x=-19+3

x=-16

Answer 3

2.(x - 23) - (x - 43) = -19

2(x - 23) - (x - 23 + 20) = -19

2(x - 23) - (x - 23) - 20 = -19

=> (x - 23).(2 - 1) = 1

=> x - 23 = 1

=> x = 24

Answer 4

=2x-46-x+43=-19   

=x-3=-19

=x-3+19=0

=> x = -16