Respuesta:
x= 3
y= 1
Explicación paso a paso:
x+2y=5
2×-3y=3
x= 5 -2y
2x= 3+3y
x= 3+3y/2
5 -2y= 3+3y/2
2( 5-2y) = 3+3y
10-4y = 3+3y
-4y-3y= 3-10
-7y = -7
y=-7/-7
x+2(1)= 5
x+2= 5
x= 5-2
Comprobación
3+ 2(1)=5
3+2 = 5
5=5
2(3)-3(1)= 3
6-3= 3
3 = 3
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Respuesta:
x= 3
y= 1
Explicación paso a paso:
x+2y=5
2×-3y=3
x+2y=5
x= 5 -2y
2×-3y=3
2x= 3+3y
x= 3+3y/2
5 -2y= 3+3y/2
2( 5-2y) = 3+3y
10-4y = 3+3y
-4y-3y= 3-10
-7y = -7
y=-7/-7
y= 1
x+2y=5
x+2(1)= 5
x+2= 5
x= 5-2
x= 3
Comprobación
x+2y=5
3+ 2(1)=5
3+2 = 5
5=5
2×-3y=3
2(3)-3(1)= 3
6-3= 3
3 = 3