Cross multiplication method for solving equations of the form Example \( x+b/a-b = x-b/a+b \) Solution : We have, \( x+b/a-b = x-b/a+b \) \( = (x+b)*(a+b) = (x-b)*(a-b) \) \( = x(a+b) + b(a+b) = x(a-b) -b (a-b) \) \( = ax + bx +ba+ b^2 \) \( =ax-bx -ba + b^2 \) \( = ax+bx- ax+bx \) \( = -ba + b^2 -ba -b^2 \)