1)3031,2)1909,3)3003,4)1001,5)10011,6)10111
15/22-(24/6-11/6):x=38/33
15/22-38/33=13/6:x
45/66-76/66=13/6:x
-31/66=13/6:x
x=13/6:(-31/66)
x=13/6*(-66/31)
x=-143/31=-4 19/31
X - 0.688X = 0.312X
X = 27 0.312*27 = 8.424
X = 1000 0.312 * 1000 = 312
X = 10000 0.312 * 10000 = 3120