i need help on solve function

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MD.MASHRAVI SHAMS
MD.MASHRAVI SHAMS 2020-3-31
hi i have a code for
clc
syms x y z
format long
x= linspace(200,1400,10000);
y= linspace(100,900,10000);
z= linspace(7380,8046,10000);
a=588545.909;
b=10167.688;
c=150;
eqn = a.*x+b.*y+c.*z == 189900000;
s = solve(eqn,x,y,z)
but this code is giving error
Error using sym.getEqnsVars>checkVariables (line 92)
Second argument must be a vector of symbolic variables.
Error in sym.getEqnsVars (line 54)
checkVariables(vars);
Error in solve>getEqns (line 429)
[eqns, vars] = sym.getEqnsVars(argv{:});
Error in solve (line 226)
[eqns,vars,options] = getEqns(varargin{:});
Error in Untitled (line 11)
s = solve(eqn,x,y,z)

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