Respuesta :
n+(n+1)=203 ----> 2n+1=203
subtract 1 from both sides and you get
2n=202
then divide by 2
2n/2=202/2
n=101 and n+1=102, so 101+102=203
subtract 1 from both sides and you get
2n=202
then divide by 2
2n/2=202/2
n=101 and n+1=102, so 101+102=203