Question

Помогите пожалуйста ( 7 и 8 )

Answer 1

$frac{10x}{2x-3}-5x \ frac{10x-5x(2x-3)}{2x-3} \ frac{10x-10x^2+15x}{2x-3} \ frac{5}{1-3} -2,5=-5/2-5/2=-5$

$3-2(x-3) textgreater 18-5x \ 3-2x+6 textgreater 18-5x \ -2x+9 textgreater 18-5x \ -2x+9+5x-18 textgreater 0 \ 3x-9 textgreater 0 \ 3x textgreater 9 |:3 \ x textgreater 3 \ (3;infty) or answer = 4$