equation 531 574 902 630
equation 173 506 480 552
equation 187 251 480 333
equation 510 336 902 374
equation 92 774 480 875
text 85 565 479 763
text 85 337 481 495
text 506 377 902 556
text 506 651 902 1319
text 506 118 901 316
text 85 878 479 1319
text 85 118 479 238