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Which of the following ordered pairs represents the solution to the system given below? 2x + y = 20 4x − 2y = 40
asked
Nov 3, 2018
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Which of the following ordered pairs represents the solution to the system given below?
2x + y = 20
4x − 2y = 40
Mathematics
middle-school
Capri
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Capri
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Answer:
(10,0)
Explanation:
Will Rickards
answered
Nov 4, 2018
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Will Rickards
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Multiply the 1st row by 2
4x+2y=40
4x-2y=40
Subtract the 2nd row from the 1st row
4y=0
Solve for y
in the above equation
4x+2×0=40
Solve for
x
in the above equation
x = 10
y = 0
Mpaskov
answered
Nov 7, 2018
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Mpaskov
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