Math, asked by jaybhanushali212, 4 months ago

B) x + y = 0 ; 2x - y = 9

Answers

Answered by anasnakhuda788

1

Step-by-step explanation:

x+y=0

2x-y=9

therefore,value of y is cut

therefore,3x=9

X=3

put this value in X+y=0

therefore,3+y=0

y=-3

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