Question

x+4y=1
3x+y=-5
despegando x o y​

Answer 1

Respuesta:

x = -21/11

y = 8/11

Explicación paso a paso:

x+4y=1

x = 1- 4y

----

3x + y = -5

3(1 - 4y) + y = -5

3 - 12y + y = -5

3 - 11y = -5

3 + 5 = 11y

8 = 11y

y = 8/11

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x + 4y = 1

x + 4(8/11) = 1

x + 32/11 = 1

(11(x) + 32)/11 = 1

11x + 32 = 11(1)

11x = 11 - 32

11x = -21

x = -21/11