Respuesta:
Explicación paso a paso:
1)))2x-5y=1
x=7/3 +2/3 y
2(7/3 +2/3y)-5y=1
14/3 +4/3 y -5y=1
14/3 -11/3 y=1
14-11y=3 -11y=-11 y=1
x=7/3 + 2/3 =9/3=3
2)))x=7/3+2/3y
7x+5y=-3
7(7/3+2/3y)+5y=-3
49/3 +14/3 y +5y =-3
49+29y=-9
29y=-58 y= -58/29=-2
x=7/3+2/3 (-2)
x=7/3-4/3=3/3=1
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Respuesta:
Explicación paso a paso:
1)))2x-5y=1
x=7/3 +2/3 y
2(7/3 +2/3y)-5y=1
14/3 +4/3 y -5y=1
14/3 -11/3 y=1
14-11y=3 -11y=-11 y=1
x=7/3 + 2/3 =9/3=3
2)))x=7/3+2/3y
7x+5y=-3
7(7/3+2/3y)+5y=-3
49/3 +14/3 y +5y =-3
49+29y=-9
29y=-58 y= -58/29=-2
x=7/3+2/3 (-2)
x=7/3-4/3=3/3=1