(3/5×X)÷80=(X-36)÷70怎么解
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(3/5×X)÷80=(X-36)÷70怎么解(3/5×X)÷80=(X-36)÷70怎么解(3/5×X)÷80=(X-36)÷70怎么解(3/5×X)÷80=(X-36)÷70两边乘5607(3/5
(3/5×X)÷80=(X-36)÷70怎么解
(3/5×X)÷80=(X-36)÷70怎么解
(3/5×X)÷80=(X-36)÷70怎么解
(3/5×X)÷80=(X-36)÷70
两边乘560
7(3/5×X)=8(X-36)
21/5×X=8X-288
(8-21/5)X=288
19/5×X=288
X=1440/19
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=
8x-5.5x=7.57.2x÷3.6=2 3x+6x-8x=0.7 12x-2x-5x=4.512x-x=0 5x+x=1.8 3.2x+1.8x=64.8x-0.8x=6 6.3-0.3x=9.6 8.6x-8.5x=0.720x-2x=36 9x+6x=4.5 18x-12x=5.42x-1.6x=3.6 18x+3x=7×6 1.2x-0.5x=0.71.3x+2.7x=1 4x-3.2x=6.4 0.8x+3.2x+3x=562.8x-2x=7.2
8x^2-4x/x^2-x-6÷(x-3/x+2-x+2/x-3),其中x=5
化简 [3x/(x+2)-x/(x=2)]÷x/(x^2-4)化简 [3x/(x+2)-x/(x-2)]÷x/(x^2-4
解方程:8x -4.5÷0.2=16 3(x+30)=6x+30 3-(5-2x)=x+273x-(67-84x)-14=76 15-(7-5X)=2X(11-3X) X+(X+10)+(x+8)=36×3 11×(4-x)+15×(4-X)=30
x÷2+x÷5=3,x=?
2x+x+x÷3=36
(3/5×X)÷80=(X-36)÷70怎么解
化简:2|x| -3x÷|2x-|5x||
21分之10x÷3分之2=7分之3x-3分之1x-2分之1x=190x-53x=7408.5x-6.9x=43.3x-200=0.2x+1101.02+0.4x+2.6x=3.428.9x-67=4.5x+656x-58=3x+1410x-20=5x+806x+5=10x-3420-1.4x=9.8x-288.2x+5.4x=272
已知f(x)=10x^2+8x^5-12x^3求:f(x)÷(-5x^2)和f(x)×(x^2-1)的值
X×X-3X+1=0求分式X×X÷〈X×X×X×X+3X×X+1〉
X^2-3X-2=0,求( x - 2x-1/x )÷(x-1)/(x^2-2x)
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!)+.
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
60+2x=185 7x+22=43 16+8x=40 4x-54=14 0.5x-1.2×5=3.8 (x+3)÷2=10.5 6x+4×6=72 5x-16.5×3=25 x+4.8x=29 12.5x-0.9x=52.2 6x+9x-12x=2.37 8x-6=70 12x+48=132 4x+8x=14.4 5.8x-1.6x=12.6 3x+2x×12=42 6(2x-6)=12.6....
(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-
解方程,5%x-7.5%x=22.5 25%x-7%x=36 2.3%x+x%=6.6 x-30%x=1.4 x÷50%=10 65%x-25%x=8