Make practice fun for artistic students my using a color by numbers format. Students solve for y to change standard form linear equations into slope intercept form and then color the picture according to the answer key. I use this in class just to break up the type of practice and assessment. You can score these quickly at a glance to assess your students' knowledge of solving literal equations. Also works well on a day you have a substitute and need practice that can also serve as a formative assessment.