Question

when solving an equation rylee get to the last line of her work and is left with 4=4 what does this mean

Answer 1

This means that the equation has infinitely many solutions.

Explanation:

Say I have a problem like 1+x=1+x.

Subtracting 1 from both sides gives me x=x.

Any number can be x b/c any number equals itself.

You can prove this by checking: 4=4; 1=1; 1000=1000; -356=-356;
`√(3) =√(3)`

Any number will equal itself, so the equation has infinitely many solutions.