# SOLUTION: Solve system by substitution method. 3x-4y=x-y+4 2x+6y=5y-4 I've been trying to figure this one out for about an hour on scratch paper.

Algebra ->  Algebra  -> Linear-equations -> SOLUTION: Solve system by substitution method. 3x-4y=x-y+4 2x+6y=5y-4 I've been trying to figure this one out for about an hour on scratch paper.       Log On

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 Algebra: Linear Equations, Graphs, Slope Solvers Lessons Answers archive Quiz In Depth

 Question 100807This question is from textbook Intro Alg : Solve system by substitution method. 3x-4y=x-y+4 2x+6y=5y-4 I've been trying to figure this one out for about an hour on scratch paper. This question is from textbook Intro Alg Answer by scott8148(6628)   (Show Source): You can put this solution on YOUR website!if you get the x and y on opposite sides in the first equation it gives 2x=3y+4 substituting this into the second equation gives (3y+4)+6y=5y-4 ... 4y=-8 ... y=-2 2x=3(-2)+4 ... 2x=-2 ...x=-1