Question

9×-4 -(×-4) =4 (×-1)​

Answer 1

Answer:

-1

Explanation:

$9x - 4 - (x - 4) = 4(x - 1) \\ 9x - 4 - x + 4 = 4x - 4 \\ 9x - x - 4 + 4 = 4x - 4 \\ 8x + 0 = 4x - 4 \\ 8x - 4x = - 4 \\ 4x = - 4 \\ x = - 1$

hope it works.....