解:25-2(x-3)=4x-1125-2x+6=4x-1125+6+11=4x+2x6x=42x=7∴x=7是原方程的解
25-2(x-3)=4x-1125-2x+6=4x-1125+6+11=2x+4x42=6xx=42/6=7
25-2(x-3)=4x-1125-2x+6=4x-114x+2x=25+6+116x =42x=7