Question

128 -3 x ( x + 4 ) = 23

Answer 1

3x(x+4)=128-23

3x(x+4)=105

x+4=105:3

x+4=35

x=35-4

x=31

cich dung cho minh di

Answer 2

3x(x+4)=128-23

3x(x+4)=105

x+4=105:3

x+4=35

x=35-4

x=31