SOLUTION: How do I solve for x and y in this problem? Can there be 2 answers? ax+by=r ax+cy=s

Question 593453: How do I solve for x and y in this problem?
Can there be 2 answers?
ax+by=r
ax+cy=s
Answer by Earlsdon(6294) (Show Source): You can put this solution on YOUR website!
Solve for y:
1)
2) Subtract equation 2) from equation 1) to get:
3) Factor a y from the left side.
3a) Finally, divide both sides by ( b-c).
3b Substitute this for y into equation 1).
1a) Solve for x:
This is one solution for x.
If you substitute for y into equation 2), you get:
which can be simplified to:

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