Question

2x+3y=5 9 th B class chapter 4 solution exercise 4.2

Answer 1

Answer:

2x=5-3y

x=5-3y/2. (equation 1)

2x+3y=5. (equation 2)

put the value of x from equation 1 to 2

2(5-3y/2)+3y=5

10-6y/2+3y=5

10-6y+6y/2=5

10-6y+6y=5*2. ( cross multiplication)

-6y+6y=10-10

y=1

put the value of y on equation 1

5-3*1/2

5-3/2

2/2

0

x=0