SOLUTION: 1. solve using cramers rule
2x+3y=20
3x-2y=17
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Question 1192172: 1. solve using cramers rule
2x+3y=20
3x-2y=17
Answer by MathLover1(20850) (Show Source): You can put this solution on YOUR website!
Your matrix
Write down the main matrix and find its determinant:
Δ =
Replace the 1st column of the main matrix with the solution vector and find its determinant:
Δ1 =
Replace the 2nd column of the main matrix with the solution vector and find its determinant:
Δ2 =
= Δ1 / Δ =
= Δ2 / Δ =
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