una granja tiene cerdos y pavos, en total hay 35 cabezas y 116 patas.¿ Cuántos cerdos y pavos hay?
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CERDOS : 4 patas - x = 23
PAVOS : 2 patas - 35-x = 12
4(x) + 2(35-x) = 116
4x + 70 - 2x = 116
2x = 116 - 70
2x = 46
x = 23
Hay 23 cerdos y 12 pavos.