SOLUTION: How would I solve the system {y+x=20 {25y+10d=260

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Question 285676: How would I solve the system {y+x=20
{25y+10d=260
Answer by richwmiller(17219) About Me  (Show Source):
You can put this solution on YOUR website!
Just curious.
Had you looked for similar problems before posting?
Had you looked for lessons before posting?
How much effort did you put in finding the right category? I suspect you have not got a clue what a trichotomy is. And this has nothing to do with inequalities.