5x=1.5 0.2x=6 x÷1.1＝3 x÷5=15利用等式性质5x=1.5 0.2x=6 x÷1.1＝3 x÷5=15利用等式性质解方程写在纸上

0.3+0.3x=0.39 x= 2x-1.5x=7.6x x= 0.36x÷0.3=1.2 x=6（x+1.2)=18.6 x= 7x+2x = 8.1 x= (x-5）÷3=1.7 x=5（x+1.1)=15.5 x= 9x+25=70 x= 7x-4x=2.1 x= 解方程怎么验算?如：x+0.3=1.8 3+x=5.4 x-1.5=4 x-6=7.6 5x=1.5 0.2x=6 x÷1.1=3 x÷5=15 x+0.3=1.8 x-1.5=4 5x=1.5 x÷1.1=3 3+x=5.4 x-6x+0.3=1.8 x-1.5=4 5x=1.5x÷1.1=33+x=5.4 x-6=7.60.2x=6 x÷5=15 x+2x+3x+4x+5x+6x+7x+8x+9x=9x-8x-7x-6x-5x-4x-3x-2x-x.x等于多少? 解下列方程:x十0.3=1.8 3十x=5.4 x -1.5＝4 x-6＝7.6 5 ＝1解下列方程:x十0.3=1.83十x=5.4 x -1.5＝4x-6＝7.65 ＝1.50.2x＝6x÷1.1＝3x÷5＝15 解方程x/(x-2)=2x/(x-3)+(1-x)/(x-5x+6) 2x+3x+4x+5x+x+6x+7x=100 (x+7/x+6) +(x+9/x+8)=9x=(x+10/x+9) +(x+6/x+5) x-4/x-5 - x-5/x-6=x-7/x-8 - x-8/x-9求x=? x+2/x+1-x+4/x+3=x+6/x+5-x+8/x+7 x=? 已知3x*x-x=1,求6x*x*x+7x*x-5x+2000 (X-5)(X-6)=X-5 3x+5x-6x=? x^-6x+5=x+4 (x+8)(x+6)(x+7)+(x+5)(x+6)(x+7)=(x+5)(x+8)(x+7)+(x+5)(x+8)(x+6) x+0.3=1.8x-1.5=45x=1.5x÷1.1=33+x=5.4x-6=7.60.2x=6x÷5=15 x+0.3=1.8x-1.5=45x=1.5x÷1.1=33+x=5.4x-6=7.60.2x=6x÷5=15 x+ x+(x*50%)=1.5X?