PuzzleM8 Learning games for families

One-step equations

Solve x/9 = 11

The aim is to get x on its own. Whatever we do to one side, we do to the other, so the equation stays balanced. This one takes 1 step.

  1. x/9 = 11The question.

  2. Step 1: Multiply by 9 on both sides ×9

    x/9 means x is divided by 9. Multiply both sides by 9.

    x = 99

    x is on its own. x = 99.

    Dividing is undone by multiplying.

Answer: x = 99

Check it

Put x = 99 back into the question. If both sides come to the same number, the answer is right.

Left side: x/9 → 11

Right side: 11 → 11

✓ Both sides are 11, so x = 99 is right.

Now try it yourself

Solve this one in Algebra Balance. You choose each step, and it explains what happened, with hints if you get stuck.

Practise this in Algebra Balance

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