Question

Tìm x.   

[120-(32.5-20.x).40]:24-5=0

Answer 1

[ 120 - ( 160 - 20x ) . 40 ] : 24 = 5

    120 - ( 160 - 20x ) = 5 . 24 = 120

                   160 - 20x   = 120 -120 = 0

                        20x      = 160 - 0 = 160

                              x    = 160 : 20 = 8

 

 

Answer 2

[120-(32.5-20.X).40]:24-5=0

=>[120-(32.5-20.X).40]:24=0+5

=>[120-(32.5-20.X).40]:24=5

=>120-(32.5-20.X).40=5.24

=>120-(32.5-20.X).40=120

=>(32.5-20.X).40=120-120

=>(32.5-20.X).40=0

=>32.5-20.X=0:40

=>32.5-20.X=0

=>160-20.X=0

=>20.X=160-0

=>20.X=160

=>X=160:20

=>X=8