Question

20.
If 3ax + 2by = 5ab & 5ax - 3by = 2ab, then
(A) x = b, y = a (B) x = a, y = b (C) x = y = a
(D) x = y = b​

Answer 1

Step-by-step explanation:

9ax+6by=15ab.....(i)

10ax-6by=4ab....(ii)

subtract the two:

now,

ax=19ab

i.e., x=19ab/a

x=19a

it means x=a

and y=b

Answer 2

Answer:

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