Odpowiedzi

2010-01-25T19:07:06+01:00
3/2+9x-(-25/16)=13,4375
3/2+9x+25/16=13,4375
1,5+9x+1,5625=13,4375
9x=13,4375-1,5-1,5625
9x=10,375
x=1,152(7)
2010-01-25T19:12:39+01:00
3/2 + 9x -(-25/16)=13,4375
3/2 + 9x + 25/16=13,4375
18/16 + 9x + 25/16=13,4375
43/16 + 9x = 13,4375
9x = 13,4375 - 2,6875
9x = 10,75 |:9
x = 1,2