equation 1323 344 2169 506
equation 531 1071 1263 1241
equation 663 2154 1263 2255
equation 675 2565 1263 2736
equation 1373 513 2118 581
text 422 346 1261 1033
text 425 1271 1263 2131
text 427 2276 1263 2523
text 1323 607 2169 2734