Răspuns :
(2×X-3)×2.125=6.8⇒(2X-3)×2.125=6.8⇒4.25X-6.375=6.8⇒
4.25X=6.8+6.375⇒4.25X=13.175⇒X=13.175/4.25⇒X=3.1
SUCEES
4.25X=6.8+6.375⇒4.25X=13.175⇒X=13.175/4.25⇒X=3.1
SUCEES