Respostas
respondido por:
3
X+y=1/2
x-y=3/2
1/2+3/2= 1+3/2 = 4/2
2x=4/2
4x=4
x=4/4
x=1
1+y=1/2
2+2y=1
2y=1-2
2y=-1
y=-1/2
X= 1 Y= -1/2
x-y=3/2
1/2+3/2= 1+3/2 = 4/2
2x=4/2
4x=4
x=4/4
x=1
1+y=1/2
2+2y=1
2y=1-2
2y=-1
y=-1/2
X= 1 Y= -1/2
respondido por:
6
x + y = 1/2 => x = 1/2 - y
x - y = 3/2
1/2 - y - y = 3/2
-2y = 3/2 - 1/2
-2y = 1
y = -1/2
x = 1/2 - (-1/2)
x = 1/2 + 1/2
x = 1
x - y = 3/2
1/2 - y - y = 3/2
-2y = 3/2 - 1/2
-2y = 1
y = -1/2
x = 1/2 - (-1/2)
x = 1/2 + 1/2
x = 1
Perguntas similares
7 anos atrás
7 anos atrás
9 anos atrás
9 anos atrás
9 anos atrás
9 anos atrás