SOLUTION: solve he following system by substitution 8x-4y=16 y-2x-4

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Question 39089: solve he following system by substitution
8x-4y=16
y-2x-4

Answer by lyra(94)   (Show Source): You can put this solution on YOUR website!
8x-4y=16
y-2x-4
Solved by pluggable solver: SOLVE linear system by SUBSTITUTION
Solve:
We'll use substitution. After moving -4*y to the right, we get:
, or . Substitute that
into another equation:
and simplify: So, we know that y=-8=0. Since , x=-2.

Answer: .


Hope this helps and feel free to contact me with further questions,
lyra

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