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
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9x-0.9乘7=2x+2.1x=?9x-0.9乘7=2x+2.1x=?还有:3(2x-1.2)=2(x+3.5)x=?2.4x-9.8=1.4x-99x-0.9乘7=2x+2.1x=?9x-0.9乘
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
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
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
9x-0.9×7=2x+2.1
9x-6.3=2x+2.1
9x-2x=2.1+6.3
7x=8.4
x=8.4÷7
x=1.2
3(2x-1.2)=2(x+3.5)
6x-3.6=2x+7
6x-2x=7+3.6
4x=10.6
x=2.65
2.4x-9.8=1.4x-9
2.4x-1.4x=9.8-9
x=0.8
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
1乘2乘3乘4乘5乘6乘7乘8乘9乘10减x=10000求大神帮助求x
3x+4x-6=36-5x 解7乘(x-8)=31+4x(x-4)乘9=(4-x)乘7x除3+(100-x)乘2=100
(x^4乘x^3乘x^2)减(2x^4乘x^5加x^2乘x^7减3x^9)
解方程:6乘(2x-7)=5乘(x+8)+9g
6乘(2x-7)=5乘(x+8)+9急.
X乘X=6乘X
26.2-9X=8.24(X+2)=11.64X+0.5乘3=6.75X-3.3=7.31.7X-0.7X=20X-4.5+5.5=158X+5乘7=914.8X+3.4乘6.7=34.785.4X+0.6X=6.63.5(X乘7)=25.913.056除X+3.20.35乘X=8.898(X-3)-5X=275X+20==10024-16X=2.77.5乘6-5X=0.825X-16X=2.73.5乘C(X+50)=238X-12.6=8.4
设函数f(x)=2/3-9乘x+根号9乘x+7,求它的定义域.
5- x/3+2=7-x 乘x
(X-2)乘(X的平方-6X-9)=X(X-5)(X-3)
9x-8乘1.2=2.1
7x-64=3/5乘9x
9x-{(12-x)/3乘2}=
x乘8=4/5 7乘x=14/15 10乘x=4/9解方程
9乘5 7乘3 5乘X X=?根据逻辑角度判断X=?
x+x+3=9 12x(是乘)(x+6)=144 3x(是乘)(x-3)=18 4x(乘)2+2x(是乘)(x-3)=40 7x+2x-3x+18=72x我表明是乘的就是乘,没表明的是x12x(是乘)(x+6)=144 是连在一起的。3x(是乘)(x-3)=18是连在一起的。4x(乘)2+2x
[x乘x加x乘2x加x乘2x]乘2=360怎么解