SOLUTION: Solve each system by substitution. Determine whether the equations are independent, dependent, or inconsistent. y=-4x-7 y=3x

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Question 177965: Solve each system by substitution. Determine whether the equations are independent, dependent, or inconsistent.
y=-4x-7
y=3x
Answer by Mathtut(3670) About Me  (Show Source):
You can put this solution on YOUR website!
y=-4x-7
y=3x
:
3x=-4x-7
:
7x=-7
:
x=-1
:
y=3(-1)=-3
:
this means the system is consistent(it has a solution)
:
it is also independent because it has only one solution.