2.4/5x-2.4/6x=1.6
2.4x-1.6=3.2、7x-4x=2.4、9.7x-2.7x=35、5x+3x=264、8x-6x=0.15、0.8
解方程3x=x+4,2.6x-8=2.4x,4x+12=10x+3 ,7x=12-×,2.5x=2x+4,5x+3=6x
有7x+2x=140 9.3x+5.7x=4.5 6x+3x=180 7x-5x=16 7.8x-2.4x=1.08 5
15X÷2=60 4X+X=3.15 3.4X+1.8=8.6 5X-X=2.4 1.5X-X=1 6.6X-6X=1.
0.95*4+6x=5 4.2(x-2)=8.4 (x+3.2)*0.4=1.6 x-1.1+0.6=2.4 8.7(x
x+2x+3x+4x+5x+6x+7x+8x+9x=9x-8x-7x-6x-5x-4x-3x-2x-x.x等于多少?
2x+3x+4x+5x+x+6x+7x=100
解方程x/(x-2)=2x/(x-3)+(1-x)/(x-5x+6)
5x-2.4x=5.2
x-x÷5=2.4 急
2.4X-3.5X=5
2.1x+2.4×3.5=14.7 (100-5x)÷6=15 3x+4x=105 7x-x+8=