Question

Решите уравнения (пожалуйста очень срочно):
4x - 7=0
-2x - 3 = 1
8x - 5 = 10x
-x + 2 = 4x
-4 + 3x = 8x + 5

Answer 1

$4x - 7 = 0 \\ 4x = 7 \\ x = \frac{7}{4} = 1 \frac{3}{4}$

$- 2x - 3 = 1 \\ - 2x = 4 \\ x = - 2$

$8x - 5 - 10x = 0 \\ - 2x - 5 = 0 \\ - 2x = 5 \\ x = - \frac{5}{2} = - 2.5$

$- x + 2 - 4x = 0 \\ - 5x + 2 = 0 \\ - 5x = - 2 \\ x = 0.4$

$- 4 + 3x - 8x - 5 = 0 \\ - 9 - 5x = 0 \\ 5x = - 9 \\ x = - \frac{9}{5} = - 1 \frac{4}{5} = - 1.8$