Question

x : 2 - 1 = 3²

12 + 4 . x = 9 . 2 - 2

10 + x : 5 - 9 = √49

2 . ( x - 1 ) = 4²

( x + 4 ) : 3 = √25

las necesito para no reprobar :(

Answer 1

Respuesta:

$\frac{x}{2} - 1 = {3}^{2} \\ \frac{x - 2}{2} = 9 \\ x - 2 = 18 \\ x = 20$

$12 + 4x = 9 \times 2 - 2 \\ 12 + 4x = 18 - 2 \\ 4x = 16 - 12 \\ 4x = 4 \\ x = 1$

$10 + \frac{x}{5} - 9 = \sqrt{49} \\ \frac{50 + x}{5} = 7 + 9 \\ 50 + x = 5 \times 16 \\ x = 80 - 50 \\ x = 30$

$2(x - 1) = {4}^{2} \\ 2x - 2 = 16 \\ 2x = 18 \\ x = 9$

$\frac{(x + 4)}{3} = \sqrt{25} \\ x + 4 = 5 \times 3 \\ x = 15 - 4 \\ x = 11$