17.5+5x=75x
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17.5+5x=75x17.5+5x=75x17.5+5x=75x17.5+5x=75x75x-5x=17.570x=17.5x=17.5÷70x=0.2517.5=70xx=0.2517.5=75x
17.5+5x=75x
17.5+5x=75x
17.5+5x=75x
17.5+5x=75x
75x-5x=17.5
70x=17.5
x=17.5÷70
x=0.25
17.5=70x
x=0.25
17.5=75x-5x
70x=17.5
x=0.25
0.25
17.5+5x=75x
17.5+5%x=75%x
X-5X%=17.5
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!)+.
x-三分之一x-四分之一x(x-三分之一x)=5
3/4X=17.5+5x%
3/4X=17.5+5x%
3/4X-5X%=17.5,
5%X+17.5=4/3X
5x-3.5+2x=17.5
(x+x+2.5)*(3/5)=75-(3/7)x
解方程2X-(X+3(X-5)=75
x-1/3x+5=75%x如何解?
x+2x+3x+4x+5x+6x+7x+8x+9x=9x-8x-7x-6x-5x-4x-3x-2x-x.x等于多少?
3X-75=5X-335
解方程x/(x-2)=2x/(x-3)+(1-x)/(x-5x+6)
(x+12)(x-2)+(x+7)(x+8)-(x+5)(x-10),其中x=2
x-2x+3x-4x+5x.+99x-100x=25求解