Math, asked by diksha7161, 1 year ago

find simultaniously equation x+y =0 2x-y =9

Answers

Answered by tanishq972003
1
A/Q

X+Y=0 - (I)

2X-Y=9 - (II)

SO BY ELIMINATION (I) AND (II)

X+Y=0
2X-Y=9

3X=9
X= 9/3
X=3
PUTT THIS IN EQUATION (I)
X+Y=0
3+Y=0
Y= -3
HENCE PROVE

tanishq972003: please mark as brainliest
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