Make up a question related to the third unit of MTH158 (algebra) and solve it. The question could be aboutrany of the topics covered so far: for example, converting word phrases or sentences into mathematical expressions or equations, solving equations, rearranging formulas, or solving word problems. The question cannot be identical to any questions covered in the class (or homework) so far. Marks will be awarded for the complexity of the problem, how many concepts it integrates, the accuracy of the solution and explanation, and originality