Question

Qual ea reposta 2y+9=10-y

Answer 1

2y+9=10-y
2y + y = 10 - 9
3y = 1
y = 1 / 3     

Resposta : y= 1/3

Answer 2

2y+y=10-9
3y=1
y=1/3
y=0,33333.....

espero ajudar ♥