Inconsistent or dependent system of equations
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Solve the system of linear equations. If the unique solution does not exist state weather the system is inconsistent or dependent.
1. -x - y = 4
x -y = -8
2. 3x - 2y = 23
x +5y = -15
3. 4x + 2y = 4
y = 2 - 2x
4. 4x - 3y = 9
2x + y = 12
5. 5x + 4y = 40
x + 2y = 11
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Solve the system of linear equations. If the unique solution does not exist state weather the system is inconsistent or dependent.
1. -x - y = 4
x -y = -8
Add both the equations, we will get
-2y = - 4
Divide by -2, we will get
y = 2
Substitute value of y in the equation x -y = -8, we will get
x - 2 = -8
=> x = -8 + 2 = -6
The solution is x = -6, y = 2
2. 3x - 2y ...
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