Pai... uite un exemplu
20*{10-4+2/[15+15-(10-x)]-22+6}=200
10-4+2/[15+15-(10-x)]-22+6=10
10-4+2/[15+15-(10+x)]-22=4
10-4+2/[15+15-(10+x)]=26
4+2/[15+15-(10+x)]=36
2/[15+15-(10+x)]=32
15+15-(10+x)=64
15-(10+x)=49
10+x=74
x=64
sper ca ai inteles:X:*
gogustrutu întreabă: