x+8/0.2-x-3/0.5=2+0.2x+0.7/0.01

来源:学生作业帮助网 编辑:六六作业网 时间:2024/12/25 21:28:38
x+8/0.2-x-3/0.5=2+0.2x+0.7/0.01x+8/0.2-x-3/0.5=2+0.2x+0.7/0.01x+8/0.2-x-3/0.5=2+0.2x+0.7/0.01(x+8)/0

x+8/0.2-x-3/0.5=2+0.2x+0.7/0.01
x+8/0.2-x-3/0.5=2+0.2x+0.7/0.01

x+8/0.2-x-3/0.5=2+0.2x+0.7/0.01
(x+8)/0.2-(x-3)/0.5=2+(0.2x+0.7)/0.01
5(x+8)-2(x-3)=2+100(0.2x+0.7)
5x+40-2x+6=2+20x+70
17x=-26
x=-26/17

一个“整式的乘法”的问题请先阅读下列解题过程,再仿做下面的问题.已知X*X + X - 1=0,求X*X*X + 2*X*X + 3的值.解X*X*X + 2X*X +3=X*X*X +X*X -X +X*X +X +3=X{X*X +X -1} +X*X +X -1 +4=0+0+4=4+ x + X*X + X*X*X=0.+ X*X + X*X*X 1+x+x^2+x^3+...+x^8+x^9=0.x^2000+1/(x^2000) x+2x+3x+4x+5x+6x+7x+8x+9x=9x-8x-7x-6x-5x-4x-3x-2x-x.x等于多少? (X+4)/0.2-(X-3)/0.5=0.2 x-(x-1)/6=3-(x+2)/3 x/12-(2x-1)/20={(3x+4)/8}-1 2%x-5+5%x=20%0.13(x-1)=0.07(x+1) x/2-x/6+x/8-x/10=1-1/3+1/4-1/5 *-----------------------------------------------*| 6 4 X | 8 X X | X X 5 || X X X | X X X | X 7 8 || X X X | X X X | X X X ||---------------+---------------+--------------- || X X X | X X X | 5 1 X || X X X | X 6 X | X X X || 8 X X | 3 5 X | 2 X X || 5x-4x=2*1.8,5x-2+3x=3.6,x+4x=20.3,8x+10-3x=30,10.5-0.5x+0.5=1,x+2x+5x=10,解方程,5x-4x=2*1.8,5x-2+3x=3.6,x+4x=20.3,8x+10-3x=30,10.5-0.5x+0.5=1,x+2x+5x=10,0.8x-0.2+1.2x=1.8,2.4x+0.6+1.6=8 x(x*x-6x-9)-x(x*x-8x-15)+2x(3-x) x+2/x+1-x+4/x+3=x+6/x+5-x+8/x+7 x=? X(x平方-6x-9)-x(x平方-8x-15)+2x(3-x)其中x=-六分之一 填九宫格帮帮忙.x x 6 x x 7 x x 98 x x x 3 x 1 x x 9 x x 6 x 5 x 3 x x x 3 x x x x 1 8x x x 9 x 1 x x x2 1 x x x x 6 x x x 6 x 7 x 3 x x 1 x x 9 x 2 x x x 47 x x 8 x x 5 x x (x+1)/(x+2)+(x+8)/(x+9)解答x+1/x+2+x+8/x+9=x+2/x+3+x+7/x+8 x-2/0.2-x+1/0.5=3 x=? x/0.5-0.4x-0.6/0.2=2(-x+3) x-2/0.2-x+1/0.5=3求x X+0.5X=3 X-0.8X=8 帮个忙 解个方程15X+5=8X+40 15x+5=8x+40 9x-0.9*7=2x+2.1 3x-0.2*10=2x 96+6x=90+8x 0.5x+30-0.3x=420 4x-2=9x-6 2(x+3)-5(1-x)=3(3-1) 4-3(2-x)=5x 4x-3(20-x)=6x-7(9-x) 4-3(2-x)=5x 4x-3(20-x)=6x-7(9-x)1/3 - x-1/2 = 1x+8/3=-x1-m/2 - 3-3m/4=1x-2/0.2 - x+1/0.5=32(x+3) - 5(1-x) = 3(x-1)4-3(2-x)=5x4x-3(20-x)=6x-7(9-x) 快进来!1.x+4/0.2-x-3/0.5=-1.3 2.2x-1/2-2x+5/3=10x-17/4+1 3.0.3-30x/0.1.x+4/0.2-x-3/0.5=-1.32.2x-1/2-2x+5/3=10x-17/4+13.0.3-30x/0.3-6.5=3(5-2x)/0.05=-11/24.x=1+x/2+x/4+x/8+x/16