tokioruiva 21/04/2022 X +Y = 440X - Y = 80 .(-1) X + Y = 440 -X + Y = -802Y = 360Y = 360/2Y = 180X + Y = 440X + 180 = 440X = 440 - 180 X = 260
tokioruiva
X +Y = 440
X - Y = 80 .(-1)
X + Y = 440
-X + Y = -80
2Y = 360
Y = 360/2
Y = 180
X + Y = 440
X + 180 = 440
X = 440 - 180
X = 260