SOLUTION: identify inconsistent systems and systems with dependent equations, using set notation to express solution sets.
4(x-y)=-12
4(x+y)=-20
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Question 153926: identify inconsistent systems and systems with dependent equations, using set notation to express solution sets.
4(x-y)=-12
4(x+y)=-20
Answer by Fombitz(32388) (Show Source): You can put this solution on YOUR website!
1.
2.
Divide both sides of both equations by 4.
1.
2.
Now add the two equations together, to cancel out y, and solve for x.
1.
Using eq. 2,
.
.
.
(x,y)=(-4,-1)
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