Question

eliminacion de 3x+5y=-8 -4x+3y=1

Answer 1

Respuesta: 4x+3y=-1

3x+5y=-9

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

4(3x+5y=-9)

———————

-12x-9y=3

12x+20y=-36

———————

0x+11y=-33

11y=-33

Y=-33/11

Y=-3

4x+3y=-1

X=-1-3y/4

X=-1-3(-3)/4

X=-1+9/4

X=8/4

X=2

X=2

Y=-3