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.Com
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
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