Question

решите уравнениет 1) |3х+4|=2 2) |2х+1|+13=14

Answer 1

$1)|3x + 4| = 2 \\ 3x + 4 = 2 \\ 3x = 2 - 4 \\ 3x = - 2 \\ \\ x = - \frac{2}{3} \\ \\ 3x + 4 = - 2 \\ x = - 2 \\ \\ x1 = - 2 \\ x2 = - \frac{2}{3} \\ \\ 2) |2x + 1| + 13 = 14 \\ |2x + 1 | = 14 - 13 \\ |2x + 1| = 1 \\ 2x + 1 = 1 \\ 2x = 0 \\ x = 0 \\ 2x + 1 = - 1 \\ x = - 1 \\ x1 = - 1 \\ x2 = 0$