Номер три плииииииииизззззз срочно

x + 320 = 560 + 200 x + 320 = 760 x = 760 - 320 x = 440 _____________ 500 + x = 432 + 78 500 + x = 510 x = 510 - 500 x = 10 _____________ x - 430 = 1000 - 530 x - 430 = 470 x = 470 + 430 x = 900 ______________ x - 150 = 109 + 601 x - 150 = 710 x = 710 + 150 x = 860 ___________