Question

The pair of equation ax+2y=7 and 3x+by=16 represent lines, then findrelation between 'a' and 'b'

Answer 1

Step-by-step explanation:

ax+2y=7

3x+by=16 -(2)

ax+2y=7

6x+2y=32

(-) (-) (-)

-5x= -25

×=25÷5

x=5.

putting the value of x in the equation no (1)

ax+2y=7

5a+12y=7 (3)

Putting the value of x in the equation no (2)

3x+by=16

3×5+by=16

15+by=16

by=16-15

by=1

b=1÷y