x + y = 60
6x + 2y = 100
Sistema de ecuaciones
Método de suma y resta
6x + 2y = 100
Sistema de ecuaciones
Método de suma y resta
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Respuesta:
x = -5
y = 65
Explicación paso a paso:
x + y = 60
6x + 2y = 100
y = 60 - x
6x + 2(60 -x) = 100
6x + 120 - 2x = 100
4x = 100 - 120
4x = -20
x = -20 / 4
x = -5
-5 + y = 60
y = 65
Verificamos:
- 5 + 65 = 60
6 (-5) + 2(65) = 100
-30 + 130 = 100