Question

ax − bx − by + ay = 12
x + y = 8
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⇒ a − b =

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Answer 1

Answer:

Given:

⇒ ax - bx + ay - by = 12

Taking x and y as common, we get:

⇒ x ( a - b ) + y ( a - b ) = 12

⇒ ( a - b ) ( x + y ) = 12

According to the question, ( x + y ) = 8. Substituting the value we get:

⇒ ( a - b ) ( 8 ) = 12

⇒ ( a - b ) = 12 / 8

⇒ ( a - b ) = 3 / 2 = 1.5

Hence the value of ( a - b ) is 1.5

Answer 2

the value of (a-b) = 3 / 2 =1.5