math
posted by Anonymous on .
Which of the following equations has the given solution set?
Solution set: Ø
A)2m + 5 = 2m + 5
B)2m + 5 = 2m + 5
C)2m + 5 = 2m  5

Solve each equation for m and see which gives an answer of zero.
One is an identity with infinite solutions
One is a false statement with no solutions. 
sorry but do you think you could help me with that

I just did

Rearrange each equation, using normal algebra rules, to solve for m. Only one of the equations will lead to a solution, and it will be m = 0. That is what you are calling "Solution set: Ø "
All the fancy talk about solution sets just makes the question look harder than it really is.