5x+7=42 x÷4.2=2 3.6x-x=3.25 2(x-5x+7=42 x÷4.2=2 3.6x-x=3.25 2(x-3)=5.8.解方程
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5x+7=42x÷4.2=23.6x-x=3.252(x-5x+7=42x÷4.2=23.6x-x=3.252(x-3)=5.8.解方程5x+7=42x÷4.2=23.6x-x=3.252(x-5x+
5x+7=42 x÷4.2=2 3.6x-x=3.25 2(x-5x+7=42 x÷4.2=2 3.6x-x=3.25 2(x-3)=5.8.解方程
5x+7=42 x÷4.2=2 3.6x-x=3.25 2(x-
5x+7=42 x÷4.2=2 3.6x-x=3.25
2(x-3)=5.8.解方程
5x+7=42 x÷4.2=2 3.6x-x=3.25 2(x-5x+7=42 x÷4.2=2 3.6x-x=3.25 2(x-3)=5.8.解方程
5X=42-7=35 X= 7
x÷4.2=2 X=2*4.2 =8.4
3.6x-x=3.25 2.6X=3.25 X=1.25
2(x-3)=5.8 x-3=2.9 X=5.9
x=7 x=8.4 x=1.25 x=5.9 求好评
.................x=7/5
5x+7=42 x÷4.2=2 3.6x-x=3.25 2(x-5x+7=42 x÷4.2=2 3.6x-x=3.25 2(x-3)=5.8.解方程
5x+7=42 x/4.2=2 3.6x-x=3.25 2(x-3)=58
x+2x+3x+4x+5x+6x+7x+8x+9x=9x-8x-7x-6x-5x-4x-3x-2x-x.x等于多少?
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
(x+12)(x-2)+(x+7)(x+8)-(x+5)(x-10),其中x=2
2x+3x+4x+5x+x+6x+7x=100
x+2/x+1-x+4/x+3=x+6/x+5-x+8/x+7 x=?
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+7)(x+5)-(x+1)(x+5)=42
4.5+x=6.2 x-3.8=6.6 4x=1 5x+7=42 2(x-5)=5.8 3.6x-x=5.8
1.(x-3)÷2=7.5 2.3x+x=30 3.15x+x=40 4.2.5x-6=18.5 5.3x+7=59.2
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
7x^2-5x=2x^2+x
X-5+8*X=7*X-2*X-1
x-8/x-4=2-x-5/x-7
5x-x+7x-2x-0.09=0.36
x(x+2)(x+3)(x+5)=7
填空:(x+5)(x+?)=x^2+7x+10