Question

Tìm x số nguyên

128-3(x+4)=23

 

 

Answer 1

=>3(x+4)=105

=>x+4=35

=>x=31

Answer 2

128-3(x+4)=23

       3(x+4)=128-23

       3(x+4)=105

         (x+4)=105:3

         (x+4)=35

          x     = 35-4

          x     = 31

Answer 3

128 - 3(x+4) = 23

=>3(x+4) = 128-23

=>3(x+4) = 105

=> x+4 = 105:3

=>x+4 = 35

=> x = 35-4

=> x= 31

Vậy x = 31

Answer 4

128-3(x+4)=23

3(x+4)=128-23

x+4=105:3

x=35-4

x=31