find simultaniously equation x+y =0 2x-y =9
Answers
Answered by
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
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
Similar questions