Final answer:
An equation has infinite solutions when all possible values of the unknown make the equation true. Two examples of equations with infinite solutions are x + 5 = x + 5 and 2x = x + x.
Step-by-step explanation:
An equation has infinite solutions when all possible values of the unknown make the equation true. This means that any value substituted for the unknown will result in a true statement. One example of an equation with infinite solutions is:
x + 5 = x + 5
When we simplify this equation, we get 0 = 0, which is true for any value of x. Therefore, this equation has infinite solutions.
Another example is:
2x = x + x
When we simplify this equation, we get 2x = 2x, which is true for any value of x. So, this equation also has infinite solutions.