Question

Consider the equation showing the distributive property.

42 + 78 = 6(7 +__ )
Enter the unknown value that would make the equation true.

Answer 1

13

Explanation:

In order to make the equation true, the blank must be filled with a number that gives 78 when it is multiplied by 6. The missing number can be found as ...

78/6 = 13

The value that makes the equation true is 13.

42 +78 = 6(7 +13)

_____

Simplifying gives ...

120 = 6(20)