Which equations are related equations to 13 + x = 29?

Select each correct answer.

29 + 13 = x

13=29-x

x=29-13

13-x=29

Solve the given equation:

13 + x = 29

Subtract 13 from both sides:

x = 16

Now look at each choice and solve for x.

A. 29 + 13 = x

x = 42

B. 13 = 29 - x

-16 = - x

x = 16

C. x = 29 - 13

x = 16

D. 13 - x = 29

-x = 16

x = - 16

Choices B and C have the same solution as the given equation, so choices B and C are equivalent to the given equation.