4x - 2y + 5z = 21 x + y -x - 3y + 2z = 8 Equation 1 Equation 2 Equation 3 = 0 (a) Solve the system provided by Equations 1 and 2. (If there is no solution, enter NO SOLUTION. If the system has an infinite number of solutions, express x, y, and z in ter (x, y, z) = (b) Solve the system provided by Equations 1 and 3. (If there is no solution, enter NO SOLUTION. If the system has an infinite number of solutions, express x, y, and z in tem (x, y, z) = (c) Solve the system provided by Equations 2 and 3. (If there is no solution, enter NO SOLUTION. If the system has an infinite number of solutions, express x, y, and z in terr (x, y, z) = | x = -4 - ty =-4+t =)- (d) How many solutions does each of these systems have? Equations 1 and 2:

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