➕ Algebra 1 · Equations
Solving Two-Step Equations cheat sheet
Everything you need on one page. Print it, or switch on test-yourself mode to blur the answers and check your memory.
The recipe (for ax + b = c)
- 1. Undo + or − on both sides
- 2. Undo × or ÷ on both sides
- 3. Check by substituting
Opposites
- + and − undo each other
- × and ÷ undo each other
Worked example
- 2x + 3 = 11
- 2x = 8 (subtract 3)
- x = 4 (divide by 2)
- Check: 2(4) + 3 = 11
Watch out
- Both sides, every time
- In x − 4 = 3 you add 4
- Negative ÷ negative = positive
Formulas
- Pattern: ax + b = c gives x = (c − b) ÷ a (when a ≠ 0)
Solving Two-Step Equations cheat sheet from HighSchoolQ.com, for personal study use.