5.1/4x=1.7

5.1/4x=1.7 4(x-9)=8 0.3×5+3x=4.5 9×3-1.7x=13.4 126÷x=42 96÷64(x-9)=80.3×5+3x=4.59×3-1.7x=13.4126÷x=4296÷6+4x=56(x-3)÷2=7.54x-3×9=297(5x+6)=918(x-6.2)=41.613(x+5)=1694.2×3-3x=5.1请写在纸上 x-2=(104-x)+2 6x-59=10x-75 (x+10)+(x-15)=280-x4（x-62)=x-38 60x-40=(60+20)*(x-5) 32x+32*0.5-25x+64x=24x+496-49x x+15=3*(109-x ) 5(3x-1.4)=2(6x-0.5) 3(x+0.9)=5(x-1.7) 13x-4(2x+5)=17(x-2)-4(2x-1) (13x+8)/3=5x-1x-60=2[(3561-x)+100]+1 (x+9)+12=2[(x-9)-1 4x=(4x+6)*2 解比例 （x+4）：x=8.4:1.7 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= 4x=(x+6)×2 （x+4):x=8.4:1.7 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 解方程:(x+10)+(x-15)=280-x x+15=3*(109-x) 5(3x-1.4)=2(6x-0.5) 3(x+0.9)=5(x-1.7) 13x-4(...解方程:(x+10)+(x-15)=280-xx+15=3*(109-x) 5(3x-1.4)=2(6x-0.5) 3(x+0.9)=5(x-1.7)13x-4(2x+5)=17(x-2)-4(2x-1) f（x）=5x^5+2x^4+3.5x^3-2.6x^2+1.7x-0.8,用秦九韶法计算多项式当x=5时 x+2x+3x+4x+5x+6x+7x+8x+9x=9x-8x-7x-6x-5x-4x-3x-2x-x.x等于多少? x-2x+3x-4x+5x.+99x-100x=25求解 先化简,再求值：（x-2/x-x+2/x)/x-2/4x,x=2011 2x+3x+4x+5x+x+6x+7x=100 (x/x-2)+(2/x*2+2x)-(x+6/x*2-4)化简,=x^2/x(x-2)+(2x-4)/x(x^2-4)-(x^2+6x)/x(x^2-4)=x^2/x(x-2)-(x+2)/x(x-2)=(x-2)(x+1)/x(x-2)=(x+1)/x (x-3/x-2)-(x-2/x-1)=(x-5/x4) -(x-4/x-3) x(x+1)+(x+2)+(x+3)+(x+4)+(x+5) = 27求x 5X+45+55=600 X-0.52X=96 4x+6x-2x=10 4.5x+0.9X=0.54 6(3X+3)=360 1.7(5X-10)=34 12X+7=7X+37 4X-6=7X-36方程的解不会的别乱答题求X是多少 jijiji 提取公因式:已知x*x-5x+1=0 求x*x*x-4x*x-4x-1