solving two symbolic equations simultaneously

Hi !

I will not use matrix to solve this problem; if we have:

x + y = a

x - y =b

We know we can get by hand and paper: x=(a+b)/2 and y=(a-b)/2. How can I get the same resulte by using SOLVE function in Matlab?

Here comes my attempt:

clear all
clc
syms x y a b
eq1=a==x+y;
eq2=b==x-y;
sol=solve([eq1 eq2],[x y])

Answer 1

[Stephan]

syms x y a b
eq1=a==x+y;
eq2=b==x-y;
[xsol,ysol]=solve([eq1 eq2],[x y])
sol.x
sol.y

or:

syms x y a b
eq1=a==x+y;
eq2=b==x-y;
[xsol,ysol]=solve([eq1 eq2],[x y])

Answer 2

[SYED IMTIAZ ALI SHAH]

Hi, this may help. Write one extra line after your code

sol.x
sol.y