Respuesta:
a) x = 1 y = 4
b) x = 0 y = 3
c) x = 2 y = 6
Explicación paso a paso:
Método de sustitución:
a)4x+y=8 x = 8 - y/4
2x-2y=-6
2(8-y)/4 - 2y = -6
16 - 10y = -24
y = 4 x = 1
b)3x+2y=6 x = 6-2y/3
2x-4y=-12
2(6-2y)/3 - 4y = -12
12 - 4y -12y = -36
y = 3 x = 0
c)3x+4y=30 x = 30-4y/3
5x-5y=-20
5(30-4y)/3 - 5y = -20
150 - 35y = -60
y = 6 x = 2
RPTA:
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Verified answer
Respuesta:
a) x = 1 y = 4
b) x = 0 y = 3
c) x = 2 y = 6
Explicación paso a paso:
Método de sustitución:
a)4x+y=8 x = 8 - y/4
2x-2y=-6
2(8-y)/4 - 2y = -6
16 - 10y = -24
y = 4 x = 1
b)3x+2y=6 x = 6-2y/3
2x-4y=-12
2(6-2y)/3 - 4y = -12
12 - 4y -12y = -36
y = 3 x = 0
c)3x+4y=30 x = 30-4y/3
5x-5y=-20
5(30-4y)/3 - 5y = -20
150 - 35y = -60
y = 6 x = 2
RPTA:
a) x = 1 y = 4
b) x = 0 y = 3
c) x = 2 y = 6