Question

Qual o valor do 'x' na conta:
x.3a = 18 (para a=3)
? ​

Answer 1

Resposta:

$x \times 3a = 18 \\ x \times 3 \times 3 = 18 \\ x \times 9 = 18 \\ 9x = 18 \div (9) \\ x = 2$