Cramer's Rule
Use Cramer's rule to solve
3x−4y=6
5x−3y=−1
What is (–2, –3)
Evaluate
0 −4
−6 −2
What is -24
Cramer’s Rule to solve:
−2x+5y=9
3x+4y=−2
What is (–2, 1)
Evaluate
5 3
6 6
What is 12
Solve a system of equations
2x + y = 5
-4x + 6y = -2
What is (2, 1)
Evaluate
3 −2 1
3 −1 −2
3 −2 −3
What is -12
If 4 apples and 2 oranges cost 100 and 2 apples and 3 orange cost 70, how much does each apple and each orange cost?
What is (apples cost 20, oranges cost 10)
Evaluate
3 4 5
−4 6 3
1 −4 3
What is 200
A baseball team played 172 complete games last season. They had 20 fewer wins than losses. How many games did the team win?
What is (wins 96, losses 76)
What value of x makes the determinant −4?
−2 0 0
−6 x 1
−4 0 −1
What is -2