Решительно пожайлуста очень срочно номер 568
А)4х+4х=424 8х=424 х=424:8 х=53 б)15у-8у=714 7у=714 у=714:7 у=102 в)9z+z=500 10z=500 z=500:10 z=50 г)10k-k=702 9k=702 k=702:9 k=78 g)4l+5l+l=1200 10l=1200 l=1200:10 l=120 e)6t+3t-t=6400 8t=6400 t=6400:8 t=800
4х+4х=424 8х=424 х=53 ======= 15у-8у=714 7у=714 у=102 ======= 9z+z=500 10z=500 z=50 ======= 10k-k=702 9k=702 k=78 ========= 4L+5L+L=1200 10L=1200 L=120 ========= 6t+3t-t=6400 8t=6400 t=800