Question

как решить уравнение:3.2|5x+1|=3.6x-9,4 ?

Answer 1

$3.2 \times |5x + 1| = 3.6x - 9.4 \\ 3.2 \times 5x + 3.2 = 3.6x - 9.4 \\ 16x + 3.2 = 3.6x - 9.4 \\ 16x - 3.6x = - 9.4 - 3.2 \\ 12.4x = - 12.6 \\ x = - \frac{12.6}{12.4} \\ x =1 \frac{0.2}{12.4} \\ x = 1 \frac{0.1}{6.2}$