①x+10.8=40.8
②x÷1.2=60
③1-x=0.25
④6x+6=306
⑤75x-68x=47.6
⑥※x-4+9=30.5
⑦30x+15x=22.5
⑧16×0.5+3x=14
⑨※(x-4)×0.25=10
①20+x=35 ②3x+6x=81 ③8x-24=80
2x+5.4=18.9 2x-2.8=9.96 (x-0.8)×4=7.2
2x+5=17 3(x-2)=12
① ② ③
⑴6x-9=33 ⑵y+3y=28.4