Question

qual é a operação de 21x+1=11x+6

Answer 1

21x+1=11x+6

21x-11x=6-1

10x=5

x=5/10

x=1/2

Resposta:  1/2

Answer 2

$21x + 1 = 11x + 6 \\ 21x - 11x = 6 - 1 \\ 10x = 5 \\ x = \frac{5}{10} \\ x = 0.5$