# Number of Solutions to an Equation Exercises

### Example 1

Figure out how many solutions there are to the equation *x* = *x* + 1.

### Example 2

Figure out how many solutions there are to the equation *w* + 3 = 7.

### Example 3

Figure out how many solutions there are to the equation 2*x* = *x*.

### Example 4

Figure out how many solutions there are to the equation *x*^{4} = 1.