Do other planets and moons share Earth’s mineral diversity? It only takes a minute to sign up. Did genesis say the sky is made of water? reply from potential PhD advisor? Your first balanced flow equation is incorrect, it should be: $$x_1 - x_2 = 400$$. What's the current state of LaTeX3 (2020)? (I'll leave $x_1$ and $x_2$ to you. "To come back to Earth...it can be five times the force of gravity" - video editor's mistake? 2. (Hint: $x_2$ and $x_7$ are negative.). \begin{align*} By using the Gaussian elimination method, I found the following system of equations (using rref () on a TI83): I keep starting and stopping because I'm not exactly sure what I'm doing. Shouldn't some stars behave as black hole? Asking for help, clarification, or responding to other answers. What kind of overshoes can I use with a large touring SPD cycling shoe such as the Giro Rumble VR? Network ﬂows Anetwork consistsofacollectionoflocationsalongwithconnectionsbe- tween them. If possible, could you please help me to get started on this problem? Stack Exchange Network. My book gives the following answer: x_1=s, x_2=4, x_3=600-s, x_4=s-t, x_5=500-t, x_6=s, x_7=t I don't know how to get my equations into this form. How to consider rude(?) *s@/!,"fPu1WHJ4-D5FhqL Where is this Utah triangle monolith located? Is Elastigirl's body shape her natural shape, or did she choose it? The sixth equation is x_1=x_2+x_4. The variables and represent the flow of the traffic between the four Where should small utility programs store their preferences? ZaOd2'4OVd,AKo*6b@1M\)!M3M\+O(j0)i. Solve the following equation system using Gaussian Elimination. Thanks for contributing an answer to Mathematics Stack Exchange! I think I understand now. Grothendieck group of the category of boundary conditions of topological field theory. Is a software open source if its source code is published by its copyright owner but cannot be used without a commercial license? How do we get to know the total mass of an atmosphere? The examples the teacher worked in class were much more straight forward. It only takes a minute to sign up. ), Question (c) is also easy. x_2+x_3+x_5&=0\\ \end{align*}. x_4+x_5&=100 Thanks for contributing an answer to Mathematics Stack Exchange! How to consider rude(?) “Question closed” notifications experiment results and graduation, MAINTENANCE WARNING: Possible downtime early morning Dec 2/4/9 UTC (8:30PM…. To learn more, see our tips on writing great answers. [pNSFgG5[flAPm7?RIc The examples the teacher worked in class were much more straight forward. %H=Xf=a'n="FS+>`k.ILW9VUW62Z]Zpmm+e!A5a;GLt@;5/aXce#rb0"DeCKnZu%^ Stack Exchange network consists of 176 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers. Help with linear algebra network flow (picture), “Question closed” notifications experiment results and graduation, MAINTENANCE WARNING: Possible downtime early morning Dec 2/4/9 UTC (8:30PM…, Transforming linear equation over $GF(2)$ to system of the equations, How many orthogonal/perpendicular lines to this affine space, Find the basis of the solution set (with infinite solutions) of a linear system, Solve for parameters so that a relation is always satisfied. I would like some clarification as to what I am doing wrong. Use MathJax to format equations. If . And I have obtained the following system of equations: − x1 + x2 = 400 x1 + x3 − x4 = 600 x2 + x3 + x5 = 300 x4 + x5 = 100. By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy. x_1+x_3-x_4&=600\\ Look at the drawing and imagine $x_6$ and $x_7$ as closed pipes. I primarily get confused with how to handle the middle nodes. What LEGO piece is this arc with ball joint? What is wrong with this linear program $\max z = 3x_1+2x_2$? MathJax reference. Is the space in which we live fundamentally 3D or is this just how we perceive it?