Question

Find a value of ‘a’ such that :- a. x = 3, y = − 2, is a solution of the equation 5x – 2ay = 5. Now, find one more solution of this equation. b. x = - 1, y = 4 is a solution of the equation 2ax – 3y = 8. Now, find one more solution of this equation. c. x = 1, y = 1 is a solution of the equation 5x – 2ay = 3a. Now, find one more solution of this equation. d. x = 3, y = 4 is a solution of the equation 5ax + 12ay = 63.Now, find one more solution of this equation

Answer 1

ANSWER:

a) a = -5/2

b) a = - 10

c) a = 1

d) a = 1

GIVEN:

a) 5x – 2ay = 5. (x = 3, y = − 2)

b) 2ax – 3y = 8. ( x = - 1, y = 4)

c) 5x – 2ay = 3a. (x = 1, y = 1)

d) 5ax + 12ay = 63. (x = 3, y = 4)

TO FIND:

Value of a.

EXPLANATION:

a) 5x – 2ay = 5

Substitute x = 3, y = − 2

5(3) - 2a(-2) = 5

15 + 4a = 5

4a = -10

a = -10/4

a = -5/2

b) 2ax – 3y = 8

Substitute x = - 1, y = 4

-2a - 12 = 8

-2a = 20

a = - 10

c) 5x – 2ay = 3a

Substitute x = 1, y = 1

5 - 2a = 3a

5a = 5

a = 1

d) 5ax + 12ay = 63

Substitute x = 3, y = 4

15a + 48a = 63

63a = 63

a = 1

THE VALUES OF a ARE

a) a = -5/2

b) a = - 10

c) a = 1

d) a = 1

Answer 2

Answer:

a) a = -5/2

b) a = - 10

c) a = 1

d) a = 1

sorry for the short answer