Mathematic expressions and equations can be used to model real-life situations. Often these situations are presented as **word problems** that can be translated into mathematical terms and solved. No matter the problem, this process can be completed using the same steps:

- Read the problem carefully and identify the value to be solved for.
- Identify the known and unknown quantities in the problem. Assign variables to represent the unknowns.
- Translate the problem to an equation.
- Solve the equation.
- Check the solution: Is the question answered? Does it make sense?

The table below gives some common phrases and their translation into mathematical terms.