Give your algebra students engaging practice with the circuit format! This set of 20 questions is great practice with solving literal equations (i.e. expressing x in the formula y = mx + b in terms of y, m, and b). The formulas get progressively more difficult from one step to two step to multi-step so it is great for differentiated instruction.
To advance in the circuit, student must search for their answer. This keeps them engaged! Talking! Excited! My students do not get up when the bell rings if they are working on a circuit.
There is no answer key included because the answers are imbedded in the circuit (it is how students move from one problem to the next -- the problems are progressive in nature). The only prep the teacher needs to do is work the circuit ahead of the students to see what kind of guided notes/examples should be given before setting the students free on the circuit.
My colleagues and I check our circuits very carefully but should you ever find a mistake or get stuck, please do not hesitate to contact me at firstname.lastname@example.org.