Question

$1) frac{x^2-3x}{x^2+7x-30} = frac{5x^2-x-42}{x^2+7x-30} 2) x^2+ frac{3x-1}{x+4}=16- frac{1-3x}{x+4} 3) frac{1}{3x+2}+ frac{3}{5x+6}= frac{2}{7x+8}$

4)$frac{12}{x^2-9} + frac{x}{x+3}= frac{2}{x-3}$