Question

3) 7+4|х-1|=9|х-1|-8
4) 5|х+4|-6=3|х+4|+8

Помогите❤️❤️❤️

Answer 1

Ответ:

$3) \: 7 + 4 |x - 1| = 9 |x - 1| - 8 \\ 4 |x - 1| - 9 |x - 1| = - 8 - 7 \\ - 5 |x - 1| = - 15 \: \\ |x - 1| = 3 \\ x - 1 = 3 \: \: \: x = 4 \\ x - 1 = - 3 \: \: \: x = - 2$

$4) \: 5 |x + 4| - 6 = 3 |x + 4| + 8 \\ 5 |x + 4| - 3 |x + 4| = 8 + 6 \\ 2 |x + 4| = 14 \\ |x + 4| = 7 \\ x + 4 = 7 \: \: \: \: x = 3 \\ x + 4 = - 7 \: \: \: \: x = - 11$