Question

find the value to x. please answer ​

Answer 1

$x = - \frac {3 }{2}$

Refer the attached picture

Answer 2

x + 1 = x + 2

x + 2 x + 1

cross multiply

(x + 1)(x + 1) = (x + 2)(x + 2)

(x + 1)² = (x + 2)²

x² + 1 + 2x = x² + 4 + 4x (using (a+b)² = a² + b² + 2ab)

x² - x² + 2x - 4x = 4 - 1

- 2x = 3

2x = - 3

x = - 3/2