One-step multiplication and division equations, step by step
3x = 21 and x ÷ 4 = 3 are solved in a single move: undo the multiplying or dividing that ties x down.
The question
x ÷ 6 = 3
x ÷ 6=3
x ÷ 6 × 6=3 × 6
x=18
x ÷ 6=3
x=18
- x was DIVIDED by 6. To get back to x on its own, undo it — and the undo of dividing is multiplying.
- Multiply BOTH sides by 6. The left becomes just x; the right becomes 3 × 6 = 18.
- Check it: 18 ÷ 6 = 3, which is what the question said. So x = 18.
How it works.
- 01
x was DIVIDED by 6. To get back to x on its own, undo it — and the undo of dividing is multiplying.
- 02
Multiply BOTH sides by 6. The left becomes just x; the right becomes 3 × 6 = 18.
- 03
Check it: 18 ÷ 6 = 3, which is what the question said. So x = 18.