解方程:
2(x-2.6)=8 5(x+1.5)=17.5 8(x-6.2)=41.6
(x-3)除2=7.5 5.4x+x=12.8 x-0.36x=16
解方程:
2(x-2.6)=8 5(x+1.5)=17.5 8(x-6.2)=41.6
(x-3)除2=7.5 5.4x+x=12.8 x-0.36x=16
2(x-2.6)=8 x-2.6=4 x=6.6
5(x+1.5)=17.5 x+1.5=3.5 x=2
8(x-6.2)=41.6 x-6.2=5.2 x=11.4
(x-3)/2=7.5 x-3=15 x=18
5.4x+x=12.8 6.4x=12.8 x=2
x-0.36x=16 0.64x=16 x=25