Question

|7+2x|=0
|x+4|=0
|8x-3|=0

Решите уравнения

Answer 1

Ответ:

$|7 + 2x| = 0 \\ 7 + 2x = 0 \\ 2x = - 7 \\ x = - 3.5$

$|x + 4| = 0 \\ x + 4 = 0 \\ x = - 4$

$|8x - 3| = 0 \\ 8x - 3 = 0 \\ 8x = 3 \\ x = \frac{3}{8}$