(1) x•3=6•5=>x•3=30=>x=30/3=>x=10
(2)x²•10=5x=>x²=10/5x=>x²=2x=>x=2
(3) +1^5+5^0+4²=>1+1+17=>19
(4)
(5)3/5•8/6=10/3=>1/5•8/3=10/3=>8/15=10/3=>24/45
(7)4x-8=18
4x=18+8
4x=26
x=26/4
Imi pare rau ca nu am putut raspunde la toate intrebarile pt ca imi este foarte somn
