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1212What is the x value of the solution to the system

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Question:

A
−1

explanation

1212To solve the system by eliminating y, multiply the first equation, 2x – y = –5, by 4 to obtain 8x – 4y = –20. Next, add the second equation, x + 4y = 11, to the transformed equation and then solve the resulting equation for x.

8x − 4y = −20

x + 4y = 11

9x + 0 = −9

9x = −9

X=-1

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