imenelinda

Solve the following system of equations algebraically: a) 2x + 8y = 7 and 3x - 5y = 4 b) 5x - 4y = -9 and 4x - y + 3z = 5 an -8x + 3y - 5z = 6 c) x - 2y + 3z = 4 and 2x + y - 4z = 3 an -3x + 4y - z = -2 d) 2x - 3y = 12 and 3y + z = 2 and 5x - 3z = 3

Solve the following system of equations by the method specified by the instructor: 3x - 2y = 4 2x + y = -1 3x - 2y = 4 6x - 4y = 8 2x + 5y = 8 6x + 15 = 18 0.6x + 0.7y = -0.5 0.05x - 0.9y = -1 0.5x - 0.4y = 2 5/4 x + 3y = -5 2x + y + 3z = 9 -x - y + z = 1 3x - y + z = 9 x + y + z = 1 2x - y = -2 3x - 2y = 5 3y + 8y = 1 5x - 2y = 4 x = 1 - y 2x = z 2z = -2 - y For the next two problems, a) State your variables and their verbal definition.

3x + 2y + z = -1 3x + 4y - z = 1 x + 2y + z = 0 x - 2y + z = 1 x + y + 2z = 2 2x + 3y + z = 6 -x + 3y + z = 3 2x + 7y + 4z = 13 4x + y + 2z = 7 x + 2y + z = 0 3x + 2y - z = 4 -x + 2y + 3z = -4 -x + 2z = -9 y + 4z = -13 3x + y = 13 x + y + z = -1 2x + z = -6 2y + 3z = 0 1/2x - y + 1/2 = z -4 x + 2y - 3z = 20 -1/2 x + 3y + 2z = 0 3/4x + y + 1/2z = -3 x + y - z = -8 1/4x - 2y + z = -4

Solving for Two and Three Unknown Solve the following simultaneous equations: y = x y = 3 - x x + y = 10 x - y = 4 x + y = 19 x - 8y = 10 3y + 2x = 5 4y - x = 3 5x - 2y = 11 3x + 3y = 15 y = 2x + 3 y = 7 - 2x 2y + 4x - 1 = 7 3y - 2x = 12 x + 2y = 10 y = -0.5x + 5 4x - y = 12 2y - 3x = 11.2 5x - 2y = 15 15x - 45 = 6y 2x - 5y = 7 2 = 3x - 2.5y 4P - 3Q = 4 2Q + 1.5P = 20 5 + 2P = 6Q 5P + 8Q = 25 x - y + z = 0 2y - 2z = 2 - x + 2y + 2z = 29 P_1 - 3P_2 = 0 5P_2 - P_3 = 10 P_1 + P_2 + P_3 = 8 3x - 2y + 1 = 0 0.5x + 2.5y -14= 0 4x - 3y + 1 = 13 0.5x + y - 3 = 4 5/2 q - 3p = 7/2 P = 18 - 10Q/5 3(x - 16) + y = 0 2x + y + 2z = 4 3x + z = 2 + y 2 = 3Q + 5P/2 5y + 10/5 = 20 x + 2y + 4z + 1 = 0

Solve algebraically for Q: t = PCL/2h ln(Q/Q - 2h(T_f - T_infinity)