4х+4х=424. 15у-8у=714. 9т+т=500.
10к-к=702. 4|+5|+|=1200.
6о+3о-о=6400

8х=424х=424:8х=5315у7у=714у=714:7у=10210т=500т=500:10т=509к=702к=702:9к=7810а=1200а=1200:10а=1208о=6400о=6400:8о=800

1)4х+4х=4248х=424х=424:8х=532)15у-8у=7147у=714у=714:7у=1023) 9т+т=50010т=500т=500:10т=504)9к=702к=702:8