Algebra is a core part of mathematics that develops critical thinking and problem‑solving skills. Among its many topics, ...

A mathematical proof is a sequence of statements that follow on logically from each other that shows that something is always true. Using letters to stand for numbers means that we can make statements ...

The length of the rectangle is \(2x + 5\). The width of the rectangle is \(3x - 2\). The highlighted words are the most important ones. The key word in the question is perimeter. The question asks to ...