Question

x+b/a-b=x-b/a+b, then x=

Answer 1

here is your answer
====================
x+b/a-b=x-b/a+b
(x+b)(a+b)=(x-b)(a-b)
ax+bx+ab+b^2=ax-bx-ab+b^2
2bx= -2ab
x = -a