Question

If the pair of linear equation 3x-5y=11, (5a+b) x – (7a-b) y=

4(3a-2b) +1 has infinitely many solutions, find the values of a

and b.

Answer 1

Answer:

Refer the attachment.

Use the condition for infinite solutions and first find value of a in terms of b.Then substitute it and find value of b.Further,use value of b to get a.

You should use first equate the first part(a1/a2) of the infinite solution condition to the middle part(b1/b2) and again equate the middle part to the third part(c1/c2).

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