Directions: Solve each system of equations algebraically. Verify the solution using the graph of the system.
y=-x-4 (I)
y = 3x (II)
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Using the substitution method
y = 3x
Substituting (II) in (I)
y=-x-4
3x =-x-4
3x +x = -4
4x= -4
x= -1
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Replacing in one of the equations
y = 3x
y= 3*-2
y= -3
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Verify the solution using the graph of the system
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Answer x= -1, y = -3