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2014-02-12T00:55:43+02:00
A)(x:2)+75=83
x:2=83-75
x=8x2
x=16
b) (x:4)+43=50
x:4=50-43
x=7x4=28
2 3 2
2014-02-12T00:58:01+02:00
A)   a:2 + 75 = 83
       a:2 = 8
        a = 16
b)   b:4 + 43 = 50
       b:4 = 7
       b = 28
1 2 1