x+7%x=5.35 (1-60%)x=5.6
3.9x÷(1+30%)=50 3x+60%x=12
48-25%x=32 4%x-6=0.4
(填上合适的数并简便计算)
6.3÷0.1=
3÷=
48×25%=
=
3-=
10.3-0.89=
①1.2x-4=8
②x+x=
③