Question 928795
x/2 + y/8 = 3
x - y/4 = 0
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put the system of linear equations into standard form
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0.5x + 0.125y = 3
x - 0.25y = 0
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solution:
x = 3
y = 12
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now by elimination:
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0.5x + 0.125y = 3
-0.5(x - 0.25y = 0)
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0.5x + 0.125y = 3
-0.5x + 0.125y = 0
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add the two equations:
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0.25y = 3
y = 3/0.25
y = 12
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0.5x + 0.125y = 3
0.5x = 3 - 0.125y
x = (3 - 0.125y)/0.5
x = (3 - 0.125*12)/0.5
x = 3
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solution by elimination:
x = 3
y = 12
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