解方程 2.7x+3=97.5 0.95÷0.4x=1.9 6.8+x=24.5 6x-4x7.5=24 4.8x-8=

2.7x+3=97.5
2.7x=97.5-3
x=94.5÷2.7
x=35
0.95÷0.4x=1.9
0.4x=0.95÷1.9
x=0.5÷0.4
x=1.25
6.8+x=24.5
x=24.5-6.8
x=17.7
6x-4x7.5=24
x=54÷6
x=9
4.8x-8=25.6
4.8x=25.6+8
x=33.6÷4.8
x= 7
12x-6x5=210
12x=210+30
x=240÷12
x=20
9x-4x=74.6
5x=74.6
x=74.6÷5
x=14.92
180（x÷4）=74
x÷4=74÷180
x=37/90×4
x=74/45