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2x + y = 3 x - 2y = -1 If equation one is multiplied by 2 and then the equations are added, the result is _____.
asked
Apr 26, 2015
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2x + y = 3
x - 2y = -1
If equation one is multiplied by 2 and then the equations are added, the result is _____.
Mathematics
high-school
Humanbeing
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Answer:
2
Explanation:
Tanathos
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Apr 27, 2015
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Tanathos
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4x+2y=6
X+2y=-1
I think you mean subtract the two.
That would get rid of the the y
3x=7 x=7/3
Then plug that into one of the organism equations
Shanny
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May 2, 2015
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Shanny
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