Respuesta:
x = -2
y = 3
Explicación paso a paso:
Sistemas:
2x - 3y = -13
5x + 2y = -4
Despejar x en 2x - 3y = -13:
2x = -13 + 3y
x = [tex]\frac{-13}{2} +\frac{3y}{2}[/tex]
x = [tex]\frac{-13+3y}{2}[/tex]
Remplazamos x en 5x + 2y = -4:
5([tex]\frac{-13+3y}{2}[/tex]) + 2y = -4
[tex]\frac{65+19y}{2}[/tex] = -4
65 + 19y = -8
19y = -8 +65
19y = 57
y = 57/19
Remplazar y en 2x - 3y = -13:
2x - 3(3) = -13
2x - 9 = -13
2x = -13 + 9
2x = -4
x = -4/2
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Respuesta:
x = -2
y = 3
Explicación paso a paso:
Sistemas:
2x - 3y = -13
5x + 2y = -4
Despejar x en 2x - 3y = -13:
2x - 3y = -13
2x = -13 + 3y
x = [tex]\frac{-13}{2} +\frac{3y}{2}[/tex]
x = [tex]\frac{-13+3y}{2}[/tex]
Remplazamos x en 5x + 2y = -4:
5x + 2y = -4
5([tex]\frac{-13+3y}{2}[/tex]) + 2y = -4
[tex]\frac{65+19y}{2}[/tex] = -4
65 + 19y = -8
19y = -8 +65
19y = 57
y = 57/19
y = 3
Remplazar y en 2x - 3y = -13:
2x - 3y = -13
2x - 3(3) = -13
2x - 9 = -13
2x = -13 + 9
2x = -4
x = -4/2
x = -2