To identify which equation that doesn't belong, let's see if we can identify a pattern. Thus, solving each equation, using inverse operations, might help us.
Equation | Inverse operation | Solution |
---|---|---|
n+14=27 | −14 | n=13 |
12+n=25 | −12 | n=13 |
n−16=29 | +16 | n=45 |
n−4=9 | +4 | n=13 |
Three equations have the solution n=13. Thus, the equation that doesn't belong is n−16=29 since it has a different solution.