The factor that makes the number sentence true is 4.
Let's break down the number sentence: 7 x 4 = ? x 7.
In the equation, we have two multiplications: 7 x 4 and ? x 7.
To find the value of ?, we can rearrange the equation by dividing both sides by 7:
(7 x 4) / 7 = ?
Simplifying the left side of the equation, we have:
28 / 7 = ?
This simplifies to:
4 = ?
Therefore, the factor that makes the number sentence true is 4.
In summary, the value of ? in the equation 7 x 4 = ? x 7 is 4.
The question probable may be:
What factor makes the number sentence true? 7 x 4 = ? X 7