ad+bc=a+bd+c? i think the ab means 10a+b, bc means 10b+c bd means 10b+d so the equation is a=d?? cant calculate from the two pre~ choose E... personal opinion
ad+bc=a+bd+c? i think the ab means 10a+b, bc means 10b+c bd means 10b+d so the equation is a=d?? cant calculate from the two pre~ choose E... personal opinion