equation 621 792 877 850
equation 635 667 877 712
equation 646 993 877 1022
equation 212 1056 485 1088
equation 221 769 485 792
text 118 1098 486 1276
text 509 1037 877 1276
text 118 811 485 1034
text 509 108 877 652
text 510 863 877 978
text 118 108 486 749
text 510 727 877 779