Question

Resulve los siguientes sistemas, operando previamente los terminos semejantes.

2×-2+y=9
6×+y-3y=8



3(x+4)+5y=1
x-4(3+y)=-10

Answer 1

Respuesta:

A) x=15, y= -19

B) x=-2, y=-1

Explicación paso a paso:

A)

2x-2 + y= 9------- 2x+y-11=0-----y=-2x+11

6x+y-3y=8-------- 6x-2y-8=0---- 6x-2(2x+11)-8 =0-----6x-4x-22-8=0-----2x=30----- x=30/2 = 15

y=-2(15)+11 = -30+11=-19

B)

3(x+4)+5y=1----- 3x+12+5y=1---- 3x+5y+11=0------------ 3(4y+2)+5y+11=0

x-4(3+y)=-10----- x-12-4y=-10---- x-4y-2=0----- x=4y+2

12y+6+5y+11=0

17y=-17

y=17/-17 = -1

x= 4(-1)+2 = -2