Question

7. Write five different linear equations in two variables and find three solutions for each of

them?​

Answer 1

ANSWER

(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) 2x−y=1

(a) for x=1

2×1−y=1

y=2−1=1

(b) for x=2

2×2−y=1

y=4−1=3

(c) for x=3

2×3−y=1

y=6−1=5

(v) 2x+3y=0

(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