(a+b)*(c+w*d/(e-c)+d)
→((a+b)*((c+((w*d)/(e-c)))+d))
→((a+b)*((c+((wd*/(ec-))+d))
→((a+b)*((c+((wd*(ec-/)+d))
→((a+b)*((c((wd*(ec-/++d))
→((ab+*((c((wd*(ec-/+d+)
→((ab+((c((wd*(ec-/+d+*
→ab+cwd*ec-/+d+*