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(2x-3)-2,125=6,8 dau coroana

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