It's by using the same technique as well. But note that this time you have more unknowns than equations. What does that tell you about the nature of the solutions you will have?blhhblah said:regarding another question...
how do you solve for x given A is a (3x4) matrix and b is a (4x1) matrix?
An Ax=b problem is a system of linear equations, where A is a matrix of coefficients, x is a vector of unknown variables, and b is a vector of constants. The goal is to find a solution for x that satisfies all of the equations in the system.
There could be several reasons for difficulty with an Ax=b problem. It could be due to a lack of understanding of the concepts involved, a mistake in the calculations, or a complex system with no clear solution.
To better understand an Ax=b problem, it is important to have a strong foundation in linear algebra and matrix operations. It may also be helpful to break down the problem into smaller, more manageable parts and practice solving similar problems.
Some common mistakes when solving an Ax=b problem include errors in calculations, not considering all of the equations in the system, and not using the correct method or algorithm for solving the problem.
There are many resources available to help with an Ax=b problem, including textbooks, online tutorials, practice problems, and working with a tutor or classmate. It is also helpful to seek clarification from your instructor or teaching assistant if you are still having difficulty.