Respuesta:
Explicación paso a paso:
75x + 35y = 8000
x + y = 120
X= 120 - y
X= [tex]\frac{8000 -35y}{75}[/tex]
120 - y = [tex]\frac{8000 -35y}{75}[/tex]
75·(120-y)=8000-35y
9000 - 75y = 8000 - 35y
9000 - 8000 = 75y -35y
1000 = 40y
1000/40 = y
25 = y
X + 25 = 120
X = 120 -25
X = 95
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Respuesta:
Explicación paso a paso:
75x + 35y = 8000
x + y = 120
X= 120 - y
X= [tex]\frac{8000 -35y}{75}[/tex]
120 - y = [tex]\frac{8000 -35y}{75}[/tex]
75·(120-y)=8000-35y
9000 - 75y = 8000 - 35y
9000 - 8000 = 75y -35y
1000 = 40y
1000/40 = y
25 = y
X + 25 = 120
X = 120 -25
X = 95