equation 1416 1634 2231 1770
equation 1455 1887 2192 1937
equation 372 1712 1074 1811
equation 1473 2882 2169 3002
equation 1551 299 2097 428
equation 1602 1386 2043 1514
equation 252 798 1230 1065
text 223 228 1228 763
text 1324 239 2311 277
text 1323 1789 2323 1865
text 1323 1993 2326 2863
text 217 1848 1228 3010
text 1323 450 2326 1364
text 1323 1537 2326 1617
text 223 1141 1226 1675