Which equations are related equations to x + 4 = 15?

select each correct answer.

x = 15 + 4

4=15−x

x + 4 = 15

x=15−4

First one is wrong bcs it should be smaller than the answer.
The second one is correct bcs to find the second number we need to do inverse operation, here is subtraction.
Third one is correct bcs this is the same (but if u r searching only for relating not same, then the third kind of wrong)
The last one is correct

6hope this ! ! ’

12+3b -1=-5-b -12-1+5=-b-3b -8=-4b