solve for x and y : bx + ay = a+b
ax( 1/a-b - 1/a+b) + by(1/b-a - 1/a+b)= 2a/a+b.
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solve for x and y : bx + ay = a+b
ax( 1/a-b - 1/a+b) + by(1/b-a - 1/a+b)= 2a/a+b.
Here is the link for the similar answer to your query.