About this worksheet
Solve ax + b = c for x by isolating the variable.
- Arithmetic facts (addition, subtraction, multiplication, division).
- Understand that a letter like x is a placeholder for an unknown number.
- Comfortable with inverse operations (subtract to undo addition, divide to undo multiplication).
With mastery, the student learns
- Isolate the variable by undoing operations in reverse order: subtract the constant, then divide by the coefficient.
- Keep the equation balanced — whatever you do on one side, do on the other.
- Read three canonical forms: (ax) + b = c, b + (ax) = c, (ax) − b = c.