SOLUTION: 1.25x – 2y = 1.3125 x + 2y = –0.75

Algebra ->  Equations -> SOLUTION: 1.25x – 2y = 1.3125 x + 2y = –0.75      Log On


   

Question 149778: 1.25x – 2y = 1.3125
x + 2y = –0.75
Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
1.25x – 2y = 1.3125
x + 2y = –0.75
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Multiply by 16 to get rid of fractions. Not required, but it makes it easier.
20x - 32y = 21
16x + 32y = -12
Add 2 eqns
36x = 9
x = 0.25
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Sub in 2nd eqn
.25 + 2y = -.75
2y = -1
y = -0.5