Respuesta :

westoncoleman439

Answer: i dont know if im right nbut the answer is 4

Step-by-step explanation:

amuratov

Answer:

9

Step-by-step explanation:

[tex]A_1 = 7 * (x + 7)[/tex]

[tex]A_2 = 8 * (x + 5)[/tex]

[tex]A_1 = A_2[/tex]

[tex]7(x + 7) = 8(x + 5)[/tex]

[tex]7x + 49 = 8x + 40[/tex]

[tex]x + 40 = 49[/tex]

[tex]x = 9[/tex]