x÷4=÷30% 3x-0.75=6.75
5x-12=48 4x−160%x=36 x:17=28:47
x+50%x=7.5 2x:45=85:2
①3x-3.7=21.2 ②x:10=23:34 ③30%x+40×0.12=6