Respuesta :
I don't really know what you mean when you say "justify".
That's an equation in 'y'. There's only one number that
'y' can be if the equation is a true statement.
The number is -4 . It's called the "solution" of the equation.
That's an equation in 'y'. There's only one number that
'y' can be if the equation is a true statement.
The number is -4 . It's called the "solution" of the equation.