Respuesta:
Explicación paso a paso:
1)2x+3y=13
2)4x-y=5
buscarx1
2x+3y=13
2x=13-3y
x=13-3y/2
buscar x2
4x-y=5
4x=5-y
x=5-y/4
buscar y
13-3y/2=5-y/4
(13-5/2)4=-y+3y
(8/2)4=2y
(4)4=2y
16=2y
16/2=y
y=8
buscar x
2x+3(8)=13
2x+24=13
2x=13-24
2x=-11
x=-11/2
x=-5.5
comprobar 1
2(-5.5)+3(8)=13
-11+24=13
13=13
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Respuesta:
Explicación paso a paso:
1)2x+3y=13
2)4x-y=5
buscarx1
2x+3y=13
2x=13-3y
x=13-3y/2
buscar x2
4x-y=5
4x=5-y
x=5-y/4
buscar y
13-3y/2=5-y/4
(13-5/2)4=-y+3y
(8/2)4=2y
(4)4=2y
16=2y
16/2=y
y=8
buscar x
2x+3(8)=13
2x+24=13
2x=13-24
2x=-11
x=-11/2
x=-5.5
comprobar 1
2(-5.5)+3(8)=13
-11+24=13
13=13