Create an algorithm to solve this equation:
To solve the equation c = a + b, follow these steps:

1. Start by identifying the known values in the equation.
2. If the values of `a` and `b` are known and the value of `c` is unknown, add `a` and `b` together to get the value of `c`.
3. If the values of `a` and `c` are known and the value of `b` is unknown, subtract `a` from `c` to get the value of `b`.
4. If the values of `b` and `c` are known and the value of `a` is unknown, subtract `b` from `c` to get the value of `a`.
5. The equation is now solved and the unknown value is found.

 Here is an example of an algorithm coded in Python:

```python
def solve_equation(a=None, b=None, c=None):
    if a is not None and b is not None and c is None:
        c = a + b
    elif a is not None and c is not None and b is None:
        b = c - a
    elif b is not None and c is not None and a is None:
        a = c - b
    return (a,b,c)
```
You can call this function to find the value of the unknown variable:

```python
solve_equation(a=1, b=2)   # Returns: (1, 2, 3)
solve_equation(c=3, b=1)   # Returns: (2, 1, 3)
solve_equation(a=2, c=5)   # Returns: (2, 3, 5)
```
c = a + b
Below is an instruction that describes a task, paired with an input that provides further context. Write a response that appropriately completes the request.

### Instruction:
Create an algorithm to solve this equation:

### Input:
c = a + b

### Response:
To solve the equation c = a + b, follow these steps:

1. Start by identifying the known values in the equation.
2. If the values of `a` and `b` are known and the value of `c` is unknown, add `a` and `b` together to get the value of `c`.
3. If the values of `a` and `c` are known and the value of `b` is unknown, subtract `a` from `c` to get the value of `b`.
4. If the values of `b` and `c` are known and the value of `a` is unknown, subtract `b` from `c` to get the value of `a`.
5. The equation is now solved and the unknown value is found.

 Here is an example of an algorithm coded in Python:

```python
def solve_equation(a=None, b=None, c=None):
    if a is not None and b is not None and c is None:
        c = a + b
    elif a is not None and c is not None and b is None:
        b = c - a
    elif b is not None and c is not None and a is None:
        a = c - b
    return (a,b,c)
```
You can call this function to find the value of the unknown variable:

```python
solve_equation(a=1, b=2)   # Returns: (1, 2, 3)
solve_equation(c=3, b=1)   # Returns: (2, 1, 3)
solve_equation(a=2, c=5)   # Returns: (2, 3, 5)
```