← All lessons

Two-step equations (-)

Grade 7-8

What this lesson shows

3 x minus 4 equals 11. Two things have happened to x: it was multiplied by 3, and then 4 was taken off. To get x back on its own, you undo both — but the ORDER matters.

Try it yourself

Real questions from this lesson's worksheets — answers below each one.

  1. Solve for x: 2x - 1 = 3
    Show answer
    2
  2. Solve for x: 3x - 1 = 2
    Show answer
    1
  3. Solve for x: 2x - 1 = 9
    Show answer
    5
  4. Solve for x: 2x - 3 = 5
    Show answer
    4

Practise this every day

Eduyro gives your child a short daily worksheet on exactly this skill, and moves them on only once they have it. Watch the lesson, then build the fluency.

Start free