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Variables on both sides

Grade 8

What this lesson shows

5 x plus 2 equals 2 x plus 11. There are x's on both sides now, and that feels like a new kind of problem. It is not. It is the same balance.

Try it yourself

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

  1. Solve for x: 2x = x + 2
    Show answer
    2
  2. Solve for x: 2x = x + 4
    Show answer
    4
  3. Solve for x: 3x = x + 8
    Show answer
    4
  4. Solve for x: 4x = x + 15
    Show answer
    5

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.

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