SOLUTION: 0.2x + 0.4y = 1.7 8.3x - 6.3y = -4.3

Algebra ->  Coordinate Systems and Linear Equations  -> Lessons -> SOLUTION: 0.2x + 0.4y = 1.7 8.3x - 6.3y = -4.3      Log On


   

Question 230814: 0.2x + 0.4y = 1.7
8.3x - 6.3y = -4.3
Answer by Alan3354(69443) About Me  (Show Source):
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0.2x + 0.4y = 1.7
8.3x - 6.3y = -4.3
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x + 2y = 8.5
83x - 63y = -43
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83x + 166y = 705.5
83x - 63y = -43
---------------- Subtract
229y = 748.5
y = 1497/458
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x = 8.5 - 2y
x = 899/458