equation 538 869 878 937
equation 628 764 878 813
equation 220 1004 486 1050
equation 647 170 878 216
equation 521 563 878 612
text 118 108 486 984
text 118 1058 485 1276
text 510 619 877 757
text 510 221 877 531
text 509 942 877 1276
text 511 820 877 862
text 510 108 876 150