Question

2X – 3Y = 3 (1)
3X – Y = 11 (2)
X+Y = 1 (3)

Answer 1

Respuesta:

X+Y= 1(3)

X+Y= 3

Y = 3-X

2X - 3Y = 3(1)

2X -(3-X) = 3

2X -3+X = 3

3X - 3 = 3

3X = 6

X = 2

OOOOOOOOOOOOOOOOOOO

Bueno ya no ni sé pero supongo que se podría resolver así

2X - 3Y = 3(1)

2X - Y = 9

X - Y = 18

-Y = x-18

2X - 3Y = 3

2X - 3(x-18) = 3

2X - 3X + 54 = 3

-X + 54 = 3

54 = 3 + X

51 = X

2(51) - 3Y = 3

102 - 3Y = 3

-3Y = 3-102

-3Y = -99

-Y = 33

-33 = Y

2X - 3Y = 3

2(52) - 3Y = 3

102 - 3(33) = 3

102 - 99 = 3

3 = 3

Bueno si sale xd