x:2+x:4+x:8=987-102
-----------------------------
x=?
x=(x:8)*8.....=>....x= ((987-102):7)*8
.x=(885:7)*8
x=126,428571*8
x=1011,42857
1011,42857:2+1011,42857:4+1011,42857:8=987-102
505,714285+252,857142+126,428571=885
758,571427+126,28571=884,999998...(885)
x=8a.........=>... x:2 =4a....=> ...x:4=2a.....=>...x:8=a
x:2 |___|___|___|___|
x:4 |___|___|
x:8 |___|
------------------------------
7a=885
a=885:7
a=126,428571
x=8a
x=126,428571*8
x=1011,42857
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daca problema ar fi cerut sa aduni un numar cu jumatatea,sfertul si optimea lui astfel in cat sa obtii 987-102=885 ,rezultatul ar fi fost altul......(razolv asa in cazul in care ai omis asta)
x+x:2+x:+x:8=987-102
-----------------------------
x=? => x=8a x) |_|_|_|_|_|_|_|_|=>a*8
x:2)|_|_|_|_|=>a*4
x:4)|_|_|=>a*2
x:8)|_|=>a
-------------------------------
8a+4a+2a+a=(987-102)......=>
15a=885
a=885:15
a=59
x=59*8
x=472.............si am avea:......
472+472:2+472:4+472:8=987-102
472+236+118+59=885
