0.6*(x+1.2)=3
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/
0.6*(x+1.2)=3
1.8-8x/1.2-1.2-3x/2-5x-0.6/0.3=2.9
3X-18=13.2 1.5X-X=6 4X+1.2X=26
用递归法求y=x-(x*x*x/3!)+(x*x*x*x*x/5!)-(x*x*x*x*x*x*x/7!)+.
0.8x+3=1.2x+0.2怎么求x
(0.6x+420)\(x+20)=3
x+17=3(x+13),2x-11.2=0.6x,2.5x-2.17=21.9-5.8x,8(x-1.5)=x+0.6
解方程:1.2x/2x-1+x/x-2=2 2.1/2x+3+1/3-2x=4x/4x²-9
1.2(x-2)-3(4x-1)=9(1-x) 2.11x+64-2x=100-9x 3.15-(8-5x)=7x+(4
x^5+x^4 = (x^3-x)(x^2+x+1)+x^2+x
已知 X=4- 根号3 求 (X*X*X*X-6X*X*X-2X*X+18X+23) / (X*X-8X+15)的值