Vă rog ex 1,2,3,4,5,6,7 pls dau coroana

1) x-9000=7342
x=7342+9000
x=16342
2) 9385-x=4859
-x=4859-9385
-x=-4526, x=4526
3) x+7838=30000
x=30000-7838
x=22162
4) x-6848=395
x=395+6848
x=7243
5) x-21000=6852
x=6852+21000
x=27852
6) x+5943=60002
x=60002-5943
x=54059