Math Antics
Solving 2-Step Equations
Undo operations in reverse to isolate the variable.
Watch on YouTubeUndo two operations to isolate the variable.
Read this first — it covers the idea in plain language with a worked example.
To get the variable alone, undo addition or subtraction first, then undo multiplication or division.
Solve 2x + 5 = 13.
Always check
Substitute your answer back into the original equation. If both sides match, you're done.
Watch the main video, then check the second take if you want another explanation.
Undo operations in reverse to isolate the variable.
Watch on YouTubeTry a worksheet or work through some problems before the quiz.
A couple of questions to make sure this topic stuck. Retake as many times as you want.
Two-Step Equations
Solve: 3x - 4 = 11.