Which of the following ordered pairs represents the solution to the system given below? 2x + y = 20 4x − 2y = 40

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asked Nov 3, 2018 8.7k views

2 Answers

Mpaskov · Answer 1 · 2018-11-07T13:39:23+0000

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

Which of the following ordered pairs represents the solution to the system given below? 2x + y = 20 4x − 2y = 40

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