Question

OI a.
White five different linear equations in two variables and find three solutions for each of them
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Answer 1

( i ) x + y = 10

( a ) for x = 1

1+y=10

y=9

( b ) for x =2

2+y=10

y=8

( c ) for x =3

3+y=10

y=7

(ii)2x+ y = 15

(a) for x =1

2×1+y = 15

y=15-2=13

(b) for x=2

2×2+y=15

y=15-4=11

(c) for x =3

2×3+y =15

( iii) 2x-y=0

(a) for x=1

2×1-y=0

y=2

( b ) for x =2

2×2-y=0

y=4

(c) for x =3

2×3-y=0

y=6

(iv) 2 x-y =1

(a)for x =1

2×1-y =1

y=2-1=1

(b) for x =1

2×2- y =1

y=4-1=3

( c) for x =3

2×3- y=1

y=6-1=5

(v) 2x+3y=6

(a) for x =1

2×1+3y=0

y=-2/3

(b) for x =2

2×2+3y=0

y=-4/3

(c) for x =3

2×3+3y=0

y=-6/3=-2

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