Question

6x + 5y=-13
7x-2y=-24 por favor ​

Answer 1

Respuesta:

Explicación paso a paso:

Sustitución

6x + 5y = - 13

7x -  2y = -24

x = (- 13 - 5y) / 6

x = -13/6 - 5/6y

7(-13/6 - 5/6y) - 2y = -24

- 91/6 - 35/6y - 2y = - 24

- 91/6 - 47/6y = - 24

- 47/6y = - 24 + 91/6

- 47/6y = - 53/6

- 47y = - 53

Y = 53/47

7x - 2(53/47) = - 24

7x - 106/47 = - 24

7x = - 24 + 106/47

7x = - 1022/47

x = - 146/47

Igualación

x = (- 13 - 5y) / 6

x = - 24/7  + 2/7y

- 13/6 - 5/6y =  - 24/7  + 2/7y

-13/6 + 24/7 = 2/7y + 5/6y

53/42 = 47/42y

Y = 53/47

6x + 5(53/47) = - 13

6x + 265/47 = - 13

6x = - 876/47

x = - 876/282

x = -146/47