250 +а=760; 360-с=90; 680-в=620; 50+а=420; с-660=110+220; в-14=640+160

Question

250 +а=760; 360-с=90; 680-в=620; 50+а=420; с-660=110+220; в-14=640+160

Answer 1

250 +а=760;
а=760-250
а=510

360-с=90;
с=360-90
с=270

680-в=620;
в=680-620
в=60

 50+а=420;
а=420-50
а=370

 с-660=110+220;
с-660=330
с=330+660
с=990

 в-14=640+160
в-14=800
в=800+14
в=814