Respuesta:
Explicación paso a paso:
A).
3x+y=11
y=2x+1 Organizar
3x+y= 11
2x-y = -1
-----------------
5x // = 10
x = 10/5
x = 2
3(2)+y=11
6 + y = 11
y = 11 - 6
y = 5
B).
X=y-2 organizar
2x-5y=8
x - y = -2 ( multiplicar por -5)
-5x + 5y = 10
2x - 5y = 8
------------------
-3x // = 18
x = -18/3
x = -6
-6 - y = -2
y = -6 + 2
y = -4
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Verified answer
Respuesta:
Explicación paso a paso:
A).
3x+y=11
y=2x+1 Organizar
3x+y= 11
2x-y = -1
-----------------
5x // = 10
x = 10/5
x = 2
3(2)+y=11
6 + y = 11
y = 11 - 6
y = 5
B).
X=y-2 organizar
2x-5y=8
x - y = -2 ( multiplicar por -5)
2x-5y=8
-5x + 5y = 10
2x - 5y = 8
------------------
-3x // = 18
x = -18/3
x = -6
-6 - y = -2
y = -6 + 2
y = -4