Respuesta:
x=-1, y=2
Explicación paso a paso:
3x+5y=7
4x-3y=-10
4x=-10+3y
x=-10/4+3y/4
3(-10/4+3y/4)+5y=7
-30/4+9y/4+5y=7
-30/4+29y/4=7
29y=28+30
y=58/29
y=2
x=-10/4+3(2)/4
x=-10/4+6/4
x=-4/4
x=-1
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Respuesta:
x=-1, y=2
Explicación paso a paso:
3x+5y=7
4x-3y=-10
4x=-10+3y
x=-10/4+3y/4
3(-10/4+3y/4)+5y=7
-30/4+9y/4+5y=7
-30/4+29y/4=7
29y=28+30
y=58/29
y=2
x=-10/4+3(2)/4
x=-10/4+6/4
x=-4/4
x=-1