3/4x+1/4=3/8
6x+2=3
6x=1
x=1/6
x÷2/7=7/16
x=7/16*2/7
x=1/8
x+7/8x=3/4
15/8x=3/4
15x=6
x=2/5
12/5÷x=3/10
3/10x=12/5
3x=24
x=8
1/4x=30%
x=3/10*4
x=6/5
3/4x+1/4=3/8
6x+2=3
6x=1
x=1/6
x÷2/7=7/16
x=7/16*2/7
x=1/8
x+7/8x=3/4
15/8x=3/4
15x=6
x=2/5
12/5÷x=3/10
3/10x=12/5
3x=24
x=8
1/4x=30%
x=3/10*4
x=6/5