Print numbers from 1-50

x=1
while [ $x -le 50 ]
do
    echo $x
    $x=(($x + 1))
done

I have wrote the above code. What seems to be a easy task in many programming languages is giving this error for me.

solution.sh: line 5: syntax error near unexpected token `('
solution.sh: line 5: `    $x=(($x + 1))'

How to debug errors in bash. Is there any IDE?