Write code and solve in Matlab

Consider the following two equations:

$x+y=42$

$x+3y=6$

Solve for $x$ and $y$ using the solve function in Matlab.

Consider the following three equations:

$x-2y+3z=7$

$2x+y+z=4$

$-3x+2y-2z=-10$

Solve for $x,y,$ and $z$ using the solve function in Matlab.