Question

Find the value of x
1) 2=2x-7y
2) 7y=-x
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Answer 1

Answer:

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Answer 2

2=2x-7y_______(1)

7y=-x

X+7y=0_______(2)

by solving 1 and 2

2x-7y=2

(X+7y=0) x 2

2x-7y=2

2x+14y=0

- - -

0 - 21y=2

y=-2/21

putting the value of y in equation 2

7y=-x

7x-2/21=-X

X= 2/3