-14-(-10)-8/(-9/7)+3*(-1)3-(-4)*5 =14+10+8*7/9-9+20=14+10+79/9-9+20=14+10-9+20+79/9=35+79/9=394/9
=-14+10+8*9/7-3*(1)3+4*5=-4+72/7-3+20=13+72/7=91/7+72/7=163/7