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

Question

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

Answer 1

8х=424
х=424:8
х=53
15у
7у=714
у=714:7
у=102
10т=500
т=500:10
т=50
9к=702
к=702:9
к=78
10а=1200
а=1200:10
а=120
8о=6400
о=6400:8
о=800

Answer 2

1)4х+4х=424
8х=424
х=424:8
х=53
2)15у-8у=714
7у=714
у=714:7
у=102
3) 9т+т=500
10т=500
т=500:10
т=50
4)9к=702
к=702:8