Higher Mathematics, version 14, RGTEU

1. Compute matrix 4A - 3 B, if
2. Write a system of equations
3. Solve the equation
Solve the system by Cramer.
4. Solve the linear programming problem in canonical form
5. Find a plan transportation of goods with minimal costs
Deliveries Orders A B
150 b1 = b2 = b3 = 105 95 90 b4 = b5 = 150
a1 = 80 3 7 9 8 7
a2 = 120 1 4 12 3 5
a3 = 315 7 11 7 1 2
a4 = 75 2 3 1 6 3