What's an example of 2 equivalent equations

Equivalent equations are when two equations come to the same answer and basically are 'equivalent' to each other.

e. g.

1. x = 1 and 2 x = 2 are equivalent since the answer is both 1

2. 2x = 0 and 3x = 0 are equivalent since both answers are 0

An example of an equivalent equation is 5x+11=14x-10