3) Given the following simultaneous equations: 7s-3x +5y+ 2z-21 6t+ 2u+3v +4x +5y+z 53 v-x-y-z-1 4s- 2u-6x +7z19 Using MATLAB, solve the simultaneous equations six different ways by: a) Using the inverse computed by using exponentiation two different ways b) Using the inverse computed by using a built-in function two different ways c) Using matrix division (left and right) 3) Given the following simultaneous equations: 7s-3x +5y+ 2z-21 6t+ 2u+3v +4x +5y+z 53 v-x-y-z-1 4s- 2u-6x +7z19 Using MATLAB, solve the simultaneous equations six different ways by: a) Using the inverse computed by using exponentiation two different ways b) Using the inverse computed by using a built-in function two different ways c) Using matrix division (left and right)