Question

Решите уравнение 117! (2,4)

Answer 1

$2) \frac{x-7}{6} =\frac{x+1}{2} -3\\ \frac{x-7}{6} =\frac{3x+3-18}{6}\\  x-7=3x-15\\ 2x=8\\ x=4$

$4) \frac{1}{2} -\frac{3x}{4} =\frac{2(3-x)}{5} \\ \frac{10-15x}{20}=\frac{24-8x}{20}  \\ 10-15x=24-8x\\ 7x=-14\\ x=-2$