Respuesta :
an equation can have only one solution,
[tex] - 1x = + 17[/tex]
[tex]x = 17 \div - 1[/tex]
[tex]x = - 17[/tex]
[tex] - 1x = + 17[/tex]
[tex]x = 17 \div - 1[/tex]
[tex]x = - 17[/tex]