Discover published sets by community

Every number is equal to itself.

If one number is equal to another, then those two numbers can be flipped and remain equal.

If two numbers are equal, both sides of the equation can be divided by the same nonzero quantity and remain equal.

If two numbers are equal, both sides of the equation can be multiplied by the same quantity and remain equal.

If one number equals a second, and the second equals a third, then the first equals the third.

If two numbers are equal, the same quantity can be subtracted from each without affecting the equality.

A value may be substituted for its equal in any expression or equation.