1.4x-6×7.2=9.8
1.4x=9.8+6×7.2
1.4x=9.8+43.2
1.4x=53
x=53/1.4
x=265/7
2.3x÷6=2.3
2.3x=2.3×6
x=2.3×6÷2.3
x=6