May not be much help since I’m confused but if you want y or whatever, isolate the variable by doing the inverse operation.
For example if you add 2 subtract it so it will cancel out. Of course to balance the equation you must do it to te other side.
Ask yourself what is stopping the variable To be by itself?
And get rid of it bun doing the inverse operation
If you add, subtract
If you subtract, add
If you multiply, divide
If you divide, multiply
If your dealing with squared numbers, find the square root of it
If it’s sign isn’t there and it positive, subtract
If it’s sign isn’t there and it’s negative, add
Im sorry if i wasn’t much help!