Respuesta:
4x+5y=47
2x+y=13
-----------------
4x+2y=26
3y=21
y=7
2x+7=13
x=3
Respuesta d) x=3, y=7
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Verified answer
Respuesta:
4x+5y=47
2x+y=13
-----------------
4x+5y=47
4x+2y=26
-----------------
3y=21
y=7
-----------------
2x+7=13
x=3
Respuesta d) x=3, y=7