8.5-x+3.5=0.8

8.5-x+3.5=0.8 5.1X-3.5X=0.8的算式求X 6.8x-0.8+3.5=8.6x 3.5x-0.8x X+0.8X=? f（x）=5x^5+2x^4+3.5x^3-2.6x^2+1.7x-0.8,用秦九韶法计算多项式当x=5时 3.5x+0.5x=12.8 x-0.5x=10.5 0.8x+4=7.2 这些怎么算? 8x-5.5x=7.57.2x÷3.6=2 3x＋6x-8x=0.7 12x-2x-5x=4.512x-x=0 5x＋x=1.8 3.2x＋1.8x=64.8x-0.8x=6 6.3-0.3x=9.6 8.6x-8.5x=0.720x-2x=36 9x＋6x=4.5 18x-12x=5.42x-1.6x=3.6 18x＋3x=7×6 1.2x-0.5x=0.71.3x＋2.7x=1 4x-3.2x=6.4 0.8x＋3.2x＋3x=562.8x-2x=7.2 解方程:x/4=30% 36/x=3/4 10/x=2.5/0.8 x/4=1.2/5 X/1.2=1.5/0.6 x/0.4=1.5/6 x/7=0.6/3.5 x/10=0.1/25-3x=8x+1 2(x-2)+2=x+1 3-x=2-5(x-1) 3x=5(32-x) 7(4-x)=9(x-4) 7x-8=2x+27 5x-18=3-2x (7x-4)+3(x-2)=2x+6 2(3x-4)+(4-x)=4x我是六年级的学生,我希望 3.5x-x=7.x=? x-0.8x=16 x=? 0.8x=x-30 x= x-0.8x=0.4x=? X-0.8X=6 X=? x-0.8x=0.8 8.5x-3.5x=27.5 求方程 3.5x-x=17.5 x+12.5=3.5x