Respuesta:
X=3
Y=4
Explicación paso a paso:
7x + 2y = 29 (9)
9x + 5y =47 (-7)
63x + 18y = 261
-63x - 35y = - 329
........... -17y = - 68
Y = - 68/-17
7x + 2(4) =29
7x + 8=29
7x =29-8
7x=21
X=21/7
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Respuesta:
X=3
Y=4
Explicación paso a paso:
7x + 2y = 29 (9)
9x + 5y =47 (-7)
63x + 18y = 261
-63x - 35y = - 329
........... -17y = - 68
Y = - 68/-17
Y=4
7x + 2(4) =29
7x + 8=29
7x =29-8
7x=21
X=21/7
X=3
NUMEROS REALES