Реши уравнение х-635=196 х+209=695 х+(69+212)=705 х-517=219+125
X-635=196 X=635+196 x=831 x+209=695 x=695-209 x=486 x+(69+212)=705 x+ 281=705 x=705-281 x=424 x-517=219+125 x-517=344 x=517+344 x=861