Question

Calcule o valor de X . Y

A)X=+4 e Y=+5

B)X=+18 e Y=-9

Answer 1

x+x=+4+18
2x=22
x=22÷2
x=11

y+y=+5-9
2y= -4
y=2÷-4
y= -2

X= 11 e Y= -2