X + 500 = 600 x 2 + 300
406+ X = 925 - 5 x 5
X - 39 = 1800 : 2 +33
786 - X = 32 x 5:2
X x 100 = 59 x 3 x 1000
810: X=1000- ( 60 x 3+10)
60 x X = ( 30 x 2 ) x 10
X:3=59 x 4:2 T​

ttappok    3   31.03.2020 11:51    13