Question

8x + 2 = 5x + 23

Answer 1

8x+2=5x+23

=>8x-5x=23-2

=>3x=21

=>x=21:3

=>x=7

Answer 2

8x+2=5x+23

=>8x-5x=23-2

=>3x=21=>x=7

Answer 3

8x+2=5x+23

ta có: 8x-5x=23-2

=>8x-5c=21

3x=21

=>x=21:3=7

Vậy x=7