Question

ПОМОГИТЕ ПОЖАЛУЙСТА С АЛГЕБРОЙ!!! УМОЛЯЮ!!!

Answer 1

1. а)

$5 {x}^{2} + 15x - 5x + {x}^{2} = 6 {x}^{2} + 10x$

б)

$- 2 {y}^{3} - 4 {y}^{2} + 6 {y}^{3} - 6 {y}^{2} = 4 {y}^{3} - 10 {y}^{2}$

2. а)

$8x - 56 - 6x - 27 = 15 \\ 2x - 83 = 15 \\ 2x = 15 + 83 \\ 2x = 98 \\ x = 49$

б)

$\frac{x}{2} - \frac{x}{8} = 5 \\ 4x - x = 40 \\ 3x = 40 \\ x = \frac{40}{3}$

в)

$\frac{6x - 1}{15} - \frac{x}{5} = \frac{2x}{3} \\ 6x - 1 - 3x = 10x \\ 3x = 10x + 1 \\ 3x - 10x = 1 \\ - 7x = 1 \\ x = - \frac{1}{7}$