SOLUTION: Solve each of the system by using either addition or substitution. If a unique solution does not exist, state whether the system is dependent or inconsistent. 10x + 2y = 7 y = -5

Algebra ->  Coordinate Systems and Linear Equations  -> Lessons -> SOLUTION: Solve each of the system by using either addition or substitution. If a unique solution does not exist, state whether the system is dependent or inconsistent. 10x + 2y = 7 y = -5      Log On


   



Question 67619: Solve each of the system by using either addition or substitution. If a unique solution does not exist, state whether the system is dependent or inconsistent.
10x + 2y = 7
y = -5x + 3
Any help is appreciated. Thanks

Answer by checkley71(8403) About Me  (Show Source):
You can put this solution on YOUR website!
10x+2y=7 & y=-5x+3 multiply equation #2 by -2 & add
-10x-2y=-6
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0x+0y=1 inconsistant