Question

7x−2y=3, 11x−2/3y=8
solve the following equation by elimination method
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Answer 1

7x−2y−3=0...(1)

22x−3y−16=0...(2)

From equation (1):a

1

=7,b

1

=−2 and c

1

=−3

From equation (2):a

2

=22,b

2

=−3 and c

2

=−16

Using cross multiplication method.

32−9

x

=

−66+112

y

=

−21+44

1

23

x

=

46

y

=

23

1

23

x

=

23

1

⇒y=

23

46

=2

Answer x=1,y=2