解方程:25x-12+15x和3x+1354x-15x

解方程:25x-12+15x和3x+1354x-15x 1x+2x+3x+4x+5x+6x+7x+8x+9x+10x+11x+12x+13x+14x+15x=550必须用解方程 解方程:5x=25×4-15x和7x-x+2×3=29.4和(28.8+5.5x+3.2)÷2=71 解方程{3X+X+2X=12}3X+X+2X=12 解方程(x-3/x)-(3-x/x+1)=5x-15/2x+2 解方程:x-2x+3x-4x+...+99x-100x=25 解方程：x-2x+3x-4x+.+99x-100x=25 3x=25x解方程 方程(X/12+15)*3=X 解方程 13x(x-25)=3x(x+25) 百分数解方程 x-15%x=37.4 四分之三x-25%x=12 解方程4x^4+12x^3-x^2-15x-6=0 matlab解数值分析题p=(x-1)*(x-2)*(x-3)*(x-4)*(x-5)*(x-6)*(x-7)*(x-8)*(x-9)*(x-10)*(x-11)*(x-12)*(x-13)*(x-14)*(x-15)*(x-16)*(x-17)*(x-18)*(x-19)*(x-20)解为1,2,3……,20取多个非常小的数用软件工具求解方程p（x）+n*x^19=0,并 MATLAb编程解方程clear;clcsyms xfor n=1:6X2=solve('(x-1)*(x-2)*(x-3)*(x-4)*(x-5)*(x-6)*(x-7)*(x-8)*(x-9)*(x-10)*(x-11)*(x-12)*(x-13)*(x-14)*(x-15)*(x-16)*(x-17)*(x-18)*(x-19)*(x-20)+1e-n*x^19=0',x);double(X2)end与直接代入n=1,2,...6算出来 解方程:60-x=34.5+4x和5.6x+4x=17.28和12(x-2)=3.6和3x-1.2=3.6 解方程 15x+15=12x+8x 解方程6*25^x=9^x+15^x 方程13x-15x+x=-3求解