(32-X)÷2=18-3X÷5

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(32-X)÷2=18-3X÷5(32-X)÷2=18-3X÷5(32-X)÷2=18-3X÷5(32-X)÷2=18-3X÷516-0.5x=18-0.6x16-0.5x+0.6x=1816+0.1

(32-X)÷2=18-3X÷5
(32-X)÷2=18-3X÷5

(32-X)÷2=18-3X÷5
(32-X)÷2=18-3X÷5
16-0.5x=18-0.6x
16-0.5x+0.6x=18
16+0.1x=18
0.1x=18-16
0.1x=2
x=20

32-X=36-6X/5
160-5X=180-6X
X=20

方程两边同乘以10
5*(32-x)=18*10-3x*2
160-5x=180-6x
x=20

(32-x)×5=(18-3x)×2
160-5x=36-6x
124=-x
x=-124

2/x+1+3/x-1=6/x²-1 4-x/x-4+1/4-x=1 不等组5x-2>3(x+1)x-2大于等于18-x 化简计算(x²/x-3-9/x-3)÷1/x²+3x (x=1/3) (X的4次方-6X立方-2X平方+18X+23)÷(X-3)(X-5),X=根号下19-8倍根号3,求 上面式子 的值分子=x^4-8x³+2x³-2x²+18x+23=x²(x²-8x)+2x³-2x²+18x+23 ````是-6x吧?但为什么结果又和我书上 先化简,再求值:(1)(x+1/x²-x-x/x²-2x+1)÷1/x,x=根号2+1 (2)(1+x-3/x+3)÷2x/x²-9 x=根号3+3 (3)4-x/x-2÷(x+2-12/x-2)x=根号3-4 (4)x-3/2x-4÷(5/x-2-x-2) x=根号3-2 (x+2)(x+3)=x²+5x+6得能被——整除,且当x=——时,x²+5x+6=0;因为(x-2)(x+3)=x²+x-6,所以(x²+x-6)÷(x-2)=x+3,即x²+x-6能被x-2整除,所以x-2是x²的一个因式,且当x=2时,x²+x- 4.2-0.6x=3.6x 5x+2x=33.6 7x-4x=0.75 2x+7x+2.1=12 56x-32x-119=361 x+5=2x 3x+9=6x 4x-28=2x 2x+18=7x 5x=25*4-15x 7x-x+2*3=29.4 (28.8+5.5x+3.2)除2=71 先化简,再计算2x^-18/4-4x+x^ ÷ 3-x/x^+x-6,其中x=4 1).1/x²-3x+2 + 1/x²-5x+6 + 1/x²-4x+32).x-1/x²+3x+2 + 6/2+x-x² -(10-x)/4-x²3).(x+1-1/1-x)÷(x-x²/x-1)4).(x²-4/x²-x-6 +x+2/x-3)÷(x+1)/(x-3)5).x/x-y ·y²/x+y - x^4y/x^4-y^4 0.3+0.3x=0.39 x= 2x-1.5x=7.6x x= 0.36x÷0.3=1.2 x=6(x+1.2)=18.6 x= 7x+2x = 8.1 x= (x-5)÷3=1.7 x=5(x+1.1)=15.5 x= 9x+25=70 x= 7x-4x=2.1 x= 化简:1.(x²-4/x²-4x+4-x-2/x+2)÷x/x-22.(a+2/a²-2a-a-1/a²-4a+4)÷4-a/a²-2a3.x²+9x/x²+3x+x²-9/x²+6x+9解方程1.x+1/x-1-4/x²-1=12.1/x+2+1/x=32/x²+2x3.3x+4/3x-5+1=4x+1/2x-3 1.(x^3-x^2-4x+1)/(x^2-3x+2)-(x^3-2x^2-9x+21)/(x^2-5x+6)+(x^2-3x+8)/(x^2-4x+3)2.{(x^2)/(x-y)}*{y/(x+y)}-{(x^4y)/(x^4-y^4)}÷{(x^2/x^2+y^2)^2} (9x³-6x²-5x+2)÷(3x-1)=? 化简 [3x/(x+2)-x/(x=2)]÷x/(x^2-4)化简 [3x/(x+2)-x/(x-2)]÷x/(x^2-4 3x/(x-2)-x/(x+2)÷2x/(x-4)化简3x/(x-2)-x/(x+2)÷2x/(x²-4)化简 化简:〔(x^2+18x+72)÷(x+12)-(x^2+5x-6)÷(x-1)〕·(x^3-2x^2-x+1) 已知x²+3x-1=0 求(x-3)÷(3x²-6x)÷(x+2-[5÷(x-2)])的值 解方程:x÷(x-2)-(1-x²)÷(x²-5x+6)=2x÷(x-3)... 8x^2-4x/x^2-x-6÷(x-3/x+2-x+2/x-3),其中x=5 6÷(x-1)+3÷x=(x+5)÷(x∧2-x)