Question

зробіть будь ласка...​

Answer 1

Объяснение:

$1) \\ 7x - 3 - 3(5x + 1) \\ 7x - 3 - 15x - 3 = 0 \\ - 8x - 6 = 0 \\ - 8x = 6 \\ x = - \frac{3}{4} \\ 2) \\ 4(x - 3) - 5x = 20 \\ 4x - 12 - 5x = 20 \\ - x - 12 = 20 \\ - x = 20 + 12 \\ x = - 32 \\ 3) \\ 4x + 1 + 10x + 1 = 6x \\ 14x + 2 = 6x \\ 14x - 6x = - 2 \\ 8x = - 2 \\ x = - \frac{1}{4} \\ 4) \\ x + 2 = 5 - 3x \\ x + 3x = 5 - 2 \\ 4x = 3 \\ x = \frac{3}{4 \\ }$