Question

12x + 21= 10 x + 16
​

Answer 1

Resposta:

12x + 21= 10x + 16

12x -10x + 21 =  + 16

12x -10x =  + 16 - 21

2x =  + 16 - 21

2x =  + 16 - 21

2x =  -5

x = -5/2

x = -2,5

Satisfeito ?