How to solve Simultaneous equations

3x+2y=0

x+y=4

Answer 1

[Torsten]

Write your equations as

A*z = b

for a 2x2-matrix A and a 2x1-vector b with z being the vector of unknowns [x;y].

To solve for z, you can then use "mldivide":

https://uk.mathworks.com/help/matlab/ref/mldivide.html

Answer 2

[Walter Roberson]

sympref('FloatingPointOutput',0);
syms x y
eqn1 = 4*x - 3*y == 0

eqn1 = 

eqn2 = 3*x + 2*y == 4

eqn2 = 

sol = solve([eqn1, eqn2])

sol = struct with fields:
    x: 12/17
    y: 16/17