Respuesta:
x=2
y=3
Explicación paso a paso:
2x+3y=13
x-4y=-10
x=-10+4y
2(-10+4y)+3y=13
-20+8y+3y=13
8y+3y=13+20
11y=33
y=33/11
x=-10+4(3)
x=-10+12
comprobación:
2(2)+3(3)=4+9=13
2-4(3)=2-12=-10
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Respuesta:
x=2
y=3
Explicación paso a paso:
2x+3y=13
x-4y=-10
x=-10+4y
2(-10+4y)+3y=13
-20+8y+3y=13
8y+3y=13+20
11y=33
y=33/11
y=3
x=-10+4y
x=-10+4(3)
x=-10+12
x=2
comprobación:
2x+3y=13
2(2)+3(3)=4+9=13
x-4y=-10
2-4(3)=2-12=-10