Question

For the equation, x - 7 = 24, can a value be substituted for x to make the equation a true number sentence?

Answer 1

Yes , the answer is 31
x - 7 = 24
x = 24 + 7
= 31

Answer 2

yes, 31

Explanation:

just switch the equation around:

24+ 7 = 31

and then back again:

31- 7= 24