# Number of Solutions to an Equation Exercises

### Example 1

How many solutions are there to the equation *x* = *x* + 1?

### Example 2

How many solutions are there to the equation *w* + 3 = 7?

### Example 3

How many solutions are there to the equation 2*x* = *x*?

### Example 4

How many solutions are there to the equation *x*^{4} = 1?