Respuesta :

Answer:

x = 7

Step-by-step explanation:

40x ÷ 10 = 28

40x ÷ 10 × 10 = 28 × 10

40x = 280

40x ÷ 40 = 280 ÷ 40

x = 7

Answer:

x=7

Step-by-step explanation:

40x/10 = 28

40x/10 * 10 = 28 *10

40x= 280

40x/40 = 280/40

x = 7