Solve for x and y of the following eq. ax+by=b=13 bx-ay=-a-b

1.	Solve for x and y of the following eq. ax+by=b=13 bx-ay=-a-b
Answer» ANSWER: The GIVEN SYSTEM of equations MAY be written as ax+by−(a−b)=0 bx−ay−(a+b)=0 By cross-multiplication, we get ⇒b×−(a+b)−(−a)×−(a−b)X=a×−(a+b)−b×−(a−b)−y=−a2−b21 ⇒−b(a+b−a(a−b)x=−a(a+b)+b(a−b)−y=−(a2+b2)1 ⇒b2−a2x=−a2−b2−y=−(a2+b2)1 ⇒−(a2+b2)x=

Answer»

The GIVEN SYSTEM of equations MAY be written as

ax+by−(a−b)=0

bx−ay−(a+b)=0

By cross-multiplication, we get

⇒b×−(a+b)−(−a)×−(a−b)X=a×−(a+b)−b×−(a−b)−y=−a2−b21

⇒−b(a+b−a(a−b)x=−a(a+b)+b(a−b)−y=−(a2+b2)1

⇒b2−a2x=−a2−b2−y=−(a2+b2)1

⇒−(a2+b2)x=

Discussion