Question

Find the values of a and b so that 4x – ( 3a + 5) y = 2 and ( 3b + 1) x – 5y = 4 will have infinite number of solutions.

Answer 1

Answer:

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Step-by-step explanation:

there should have been 2x − 3y = 12

5x + 3y = 9 -----(I)

2x − 3y = 12 ----- (II)

Add (I) and (II)

7x = 21

x = 3

Putting the value of x = 3 in (I) we get

5(3)+3y=9⇒15+3y=9⇒3y=9−15=−6⇒y=−2

Thus, (x, y) = (3, −6).