How to separate a single variable from other variables in an equation ?

I have a system of linear equations written as follow : 10X-Y+2Z=6 , -X+11Y-Z=25, 2X -Y +10Z=-11. I want to separate X from its coefficient in eq. 1 , Y in eq 2 and Z in eq 3 so that eq 1 becomes X=Y/10 - Z/5 +3/5 and eq 2 as Y = X/11 + Z/11 + 25/11 and eq 3 as Z = -X/5 +Y/10 - 11/10. If there are 4 equations then the fourth variable e.g. L will be separated like the previous equations. Please tell me a way to do the above in MATLAB.

 Accepted Answer

syms X Y Z
X1=solve(10*X-Y+2*Z==6,X)
Y1=solve(-X+11*Y-Z==25,Y)
Z1=solve(2*X -Y +10*Z==-11,Z)

2 Comments

Thank you very much ! works great.
What if these equations were in a matrix or an array and the symbolic characters in another matrix then how will the above be done ? e.g equations= [10*X-Y+2*z=6, -X+11*Y-Z=25, 2*X-Y+10*Z=-11] and variables=[X, Y, Z] then how would you do X1=solve(equations(1),variables(1)) and Y1=solve(equations(2),variables(2)) and so on ? i tried doing this but matlab gave an error '10*X-Y+2*z' is not a valid equation for the first equation.

Sign in to comment.

More Answers (0)

Categories

Products

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!