Question

解方程．
X-12.75=22.25
X+0.89=29.62．

Answer 1

（1）X-12.75=22.25，
X-12.75+12.75=22.25+12.75，
X=35；

（2）X+0.89=29.62，
X+0.89-0.89=29.62-0.89，
X=28.73．