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Home > A2C > Chapter Ch7 > Lesson 7.3.5 > Problem 7-219

7-219.

Use matrices to solve these systems. Check your answers by substituting them in the original equations. You will not need a calculator if you use the results of the previous problem.

First substitute matrices for the equations.

Multiply both sides by the inverse.

Solve for p and q.

  1. See part (a).