3x+2.5x+16=40
3x+16=x+40,求x
x+(3x-16)/25%=40
x+3x=-16
3x+0.5x=4.2 4x-2.16=1.2 x-0.2x=16 2x-4x[这个x是乘】2.5=3.6 3x+5x=
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!)+.
问几道解方程x/6-x=(x-3)/6x-1=1/2x+1/4x+1/8x+1/16x+1/32x77/x=2.5*77
x-o.8x=6 12x-8x=4.8 3x-8=16 7.5x-2x x-0.7x=3.6 求答案
x^5+x^4 = (x^3-x)(x^2+x+1)+x^2+x
(1)16x-40=9x+16是多少?(2) 4x=20/3x+16 (3)2(3-x)=-4(x+5) (4)3(-2
解方程:(1)16x-40=9x+16 (2)4x=20/3x+16 (3)2(3-x)=-4(x+5)
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
解方程:2-3.5x=-4.5x 2x=3x+16 2.5x-1.9=1.8x+1.6