Х-230=480;324+х=800;700-х=227;х+420=683
X-230=480 x=480+230 x= 710 710-230=480 :))) 324+x=800 x=800-324 x=576 324+576=800 700-x=227 x=700-227 x=583 700-583=227
X-230=480 324+x=800. 700-x=227 x=230+480. x=800-324 x=700-227 x=710. x=476. x=473