Question

The solution x=7 is a solution to which of the following equations? Check all that apply

x+54=31
23+x=40
-21=x+(-38)
8=x+1

i think its a and d please tell me if i am right or wrong

Answer 1

The correct answer is D.
X=7
8=7+1
8=8

Answer 2

The answer is d. You have to substitute the x for 7 and see if it equals the answer