Question

X + Y = 100
X - Y= 4

ME AJUDEM pfvr​

Answer 1

Resposta:

X+Y= 100 ,OU SEJA, X= 100-Y

X- Y=4

100- Y- Y=4

-2Y = 4-100 *(-1)

2Y= -4+100

Y= 96/2

Y= 48

X+Y=100

X+48= 100

X= 100-48

X= 52