Question

x + y = 12 5x + 2y = 105

Answer 1

Respuesta:

x = 27

y = –15

Explicación paso a paso:

×+y=12

5×+2y=105

(-2) X + y = 12

5× + 2y = 105

-2x -2y = -24

5x + 2y = 105

-2x = -24

5X = 105

3x = 81

X = 27

y = –15