Respuesta:
x + y = 5000
y = x-400
y = 2300
x = 2700
metodo de sustitución
x + x-400 = 5000
2x = 5000 + 400
x = 5400/2
y = 2700 - 400
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Verified answer
Respuesta:
x + y = 5000
y = x-400
y = 2300
x = 2700
metodo de sustitución
x + x-400 = 5000
2x = 5000 + 400
x = 5400/2
x = 2700
y = 2700 - 400
y = 2300