Respuesta :

Answer:

x = 4

Step-by-step explanation:

In the picture above.

Hope this helps.

Ver imagen Moalhazaa

Step-by-step explanation:

[tex]4x + 7y = 51 \\ 4x + 7 \times 5 = 51 \\ 4x + 35 = 51 \\ 4x = 51 - 35 \\ 4x = 16 \\ x = \frac{16}{4} \\ x = 4[/tex]