SOLUTION: xy + 3x = 3 3x + y = 7

Algebra ->  Customizable Word Problem Solvers  -> Age -> SOLUTION: xy + 3x = 3 3x + y = 7       Log On

Ad: Over 600 Algebra Word Problems at edhelper.com


    

Question 1107982: xy + 3x = 3 3x + y = 7
Answer by josgarithmetic(39630) About Me  (Show Source):
You can put this solution on YOUR website!
system%28xy+%2B+3x+=+3%2C3x+%2B+y+=+7%29

Substitution for y gives x%287-3x%29%2B3x=3,
.
.
3x%5E2-10x%2B3=0
Discriminant is ,... 8%5E2.

x=%2810%2B-+8%29%2F6
Continue from here...