Question

Which equation has a solution of x = 15?

A. X + 7 = 12
B. 15 + x = 10
C. 13 + x = 38
D. x + 24 = 39

Answer 1

D. 15 + 24 = 39
You're welcome :)

Answer 2

Hey there!

Let's solve all these equations.

The first equation:

x+7=12

subtract 7 from both sides:

x=5

not 15 ;)

The second equation:

15+x=10

subtract 15 from both sides:

x=-5

not 15 ;)

13+x=38

subtract 13 from both sides:

x=38-13

x=25

not 15 ;)

let's try the last option (it has to work)

x+24=39

subtract 24 from both sides:

x=15

Yep!

Hence,

`\boxed{\boxed{\bold{Option~D~is~correct.}}}`

Hope everything is clear.

Let me know if you have any questions!

#LearningDoesn'tEnd

:-)