Question

помогите пж !!!!!!!!​

Answer 1

$\frac{x - 3}{6} = \frac{7}{3} \\ 3(x - 3) =7 \times 6 \\ 3x - 9 = 42 \\ 3x = 51 \\ x = 17$

$\frac{x + 7}{3} = \frac{2x - 3}{5} \\ 5(x + 7) = 3(2x - 3) \\ 5x + 7 = 6x - 9 \\ x = 16$

$\frac{5}{2x + 3} = \frac{2.5}{4.5} \\ 22.5 = 2.5(2x + 3) \\ 22.5 = 5x + 7.5 \\ 5x = 15 \\ x = 3$

$\frac{0.2}{x + 3} = \frac{0.7}{x - 2 } \\ 0.2(x - 2) = 0.7(x + 3) \\0.2x - 0.4 = 0.7x + 2.1 \\ - 0.5x = 2.5 \\ x = - 5$