Question

-8x + 4y = -28
2x + 3y = 51

Answer 1

Explicación paso a paso:

-8x + 4y = -28

2x + 3y = 51. /×4

8x + 12y = 204

16y // 176

y = 176/16

y = 11

reemplazamos

–8x + 4 × 11 = –28

–8x + 44 = –28

–8x = –28 –44

–8x = –72 /×-1

8x = 72

x = 72/8

x = 9

respuestas ;

X = 9 ; Y = 11