(9-X)*100+X+693=100X+(9-X)这道方程怎样解求大神帮助
问题描述:
(9-X)*100+X+693=100X+(9-X)这道方程怎样解求大神帮助
答
900-900X+X+693=100X+9-X 900+693-9=100X-X+900X-X 1584=998X X=1584/998
(9-X)*100+X+693=100X+(9-X)这道方程怎样解求大神帮助
900-900X+X+693=100X+9-X 900+693-9=100X-X+900X-X 1584=998X X=1584/998