0.7:x=2.1:3
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0.7:x=2.1:3
0.7:x=2.1:3
0.7:x=2.1:3
2.1x=3*0.7
x=1
0.7:x=2.1:3
7.3-0.7X=2.1-2X
x-o.8x=6 12x-8x=4.8 3x-8=16 7.5x-2x x-0.7x=3.6 求答案
1.(x*2-3x+3)/(x*2-3x+2)-(x*2-5x+7)/(x*2-5x+6)-1/(x*2-4x+3)2.1/x(x+1)+2/(x+1)(x+3)+3/(x+3)(x+6) 3.已知:x*2-3x+1=0,求x*2+1/x*2.
3x 0.7x=2.3中的x怎么解
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!)+.
0.6+3X=2.1-2X
3x=5x-0.7
1.x-0.7x=2.342.x-0.8x=123.4(3x-x)=64
(1) 2.5+3X=1.1 (2) 12X-5X=2.1 (3) X-0.3X=1.4 X=1.1 X=2.1 X=1.4 X=?X=0.3 X=?
9x-0.9乘7=2x+2.1 x=?9x-0.9乘7=2x+2.1 x=?还有:3(2x-1.2)=2(x+3.5) x=?2.4x-9.8=1.4x-9
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
1.解方程:2x-1分之x-1 + 1-2x分之5x-8= - 3 2.1-x分之3-x - 7-x分之5-x =1 - x²-8x+7分之x²-2
0.6+3x+2.1-2x解方程0.6+3X=2.1-2X
3x*x=1600+x*x-80x
(X+1)X(X+2)X(X+3)=504
x-0.7x=0.51为什么x-0.7x= 3
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=