Solve the system using either Gaussian elimination with back-substitution or Gaus: number of solutions, express x, y, and z in terms of the parameter t.) 3x + 3y + x + y + 3z = 2x + 5y + 15z 6z -x + 2y + (x, y, z) = 9z 12 4 M 20 8 =

Solve the system using either Gaussian elimination with back-substitution or Gaus number of solutions, express x,y, and z in terms of the parameter t.) 3x+3y+9z=x+y+3z=2x+5y+15z=x+2y+6z=124208 Find functions f and g such that F=fg. (Use non-identity functions for f(x) and g(x).) F(x)=(5x+x2)4{f(x),g(x)}={