Question: Can you recommend a free online math solver that provides step-by-step explanations for various math subjects?

If you're looking for a free online math solver that offers step-by-step explanations for a variety of math topics, there are a few good options. The AI Math Solver uses AI models like GPT-4o to solve a broad range of math problems and explain the steps. It also lets you work through problems with an interactive conversational AI bot, which can be helpful if you're stuck on a particular math subject like algebra, calculus or geometry.

Another good option is Photomath, a math camera solver app that covers elementary school through college-level math. It offers step-by-step explanations, customizable visualizations and immediate answers. Photomath is free to use, though you can pay for premium features.

If you want a more complete solution, UpStudy offers detailed explanations for math, chemistry, physics and biology problems. It covers advanced math subjects, too, and offers 24/7 access to live tutors. UpStudy is geared for students of all ages, with a large library of worksheets and practice problems, and offers a free basic plan with limited access and a premium plan for more features.

Last, Khan Academy is a free, nonprofit online learning platform with a wealth of materials, including step-by-step math solutions for all levels from Pre-K to college. It's a good option for personalized learning and can be helpful for students and teachers.