( )x+12=48 2.5x-( )=12.7 5x+4乘(( )x+12=48 2.5x-( )=12.75x+4乘( )=62(x+7)乘( )=65提示:有双倍采纳.提示2:乘是乘提示3:x是ai ke si提示4:ai ke si 是拼音.提示5:没了...
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![( )x+12=48 2.5x-( )=12.7 5x+4乘(( )x+12=48 2.5x-( )=12.75x+4乘( )=62(x+7)乘( )=65提示:有双倍采纳.提示2:乘是乘提示3:x是ai ke si提示4:ai ke si 是拼音.提示5:没了...](/uploads/image/z/992693-29-3.jpg?t=%28+%29x%EF%BC%8B12%EF%BC%9D48+2.5x%EF%BC%8D%28+%29%EF%BC%9D12.7+5x%EF%BC%8B4%E4%B9%98%28%28+%29x%EF%BC%8B12%EF%BC%9D48+2.5x%EF%BC%8D%28+%29%EF%BC%9D12.75x%EF%BC%8B4%E4%B9%98%28+%29%EF%BC%9D62%28x%EF%BC%8B7%29%E4%B9%98%28+%29%EF%BC%9D65%E6%8F%90%E7%A4%BA%3A%E6%9C%89%E5%8F%8C%E5%80%8D%E9%87%87%E7%BA%B3.%E6%8F%90%E7%A4%BA2%3A%E4%B9%98%E6%98%AF%E4%B9%98%E6%8F%90%E7%A4%BA3%3Ax%E6%98%AFai+ke+si%E6%8F%90%E7%A4%BA4%3Aai+ke+si+%E6%98%AF%E6%8B%BC%E9%9F%B3.%E6%8F%90%E7%A4%BA5%3A%E6%B2%A1%E4%BA%86...)
( )x+12=48 2.5x-( )=12.7 5x+4乘(( )x+12=48 2.5x-( )=12.75x+4乘( )=62(x+7)乘( )=65提示:有双倍采纳.提示2:乘是乘提示3:x是ai ke si提示4:ai ke si 是拼音.提示5:没了...
( )x+12=48 2.5x-( )=12.7 5x+4乘(
( )x+12=48
2.5x-( )=12.7
5x+4乘( )=62
(x+7)乘( )=65
提示:有双倍采纳.
提示2:乘是乘
提示3:x是ai ke si
提示4:ai ke si 是拼音.
提示5:没了.
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( )x+12=48 2.5x-( )=12.7 5x+4乘(( )x+12=48 2.5x-( )=12.75x+4乘( )=62(x+7)乘( )=65提示:有双倍采纳.提示2:乘是乘提示3:x是ai ke si提示4:ai ke si 是拼音.提示5:没了...
提示一,括号里的数是什么,提示二,x取什么值,提示三,一个等式里出现两个未知数没办法解.
x+2/x+1=5/x-1/x(x+1) 求化简!
6x-2x+3x-3x-x=1.2×3
解方程.2.5x=14 3.4x-48=26.8 42x+25x=134 x-7.9=2.6 x解方程.2.5x=143.4x-48=26.842x+25x=134x-7.9=2.6x÷3=1.22x-97=34.213(x+5)=169
( )x+12=48 2.5x-( )=12.7 5x+4乘(( )x+12=48 2.5x-( )=12.75x+4乘( )=62(x+7)乘( )=65提示:有双倍采纳.提示2:乘是乘提示3:x是ai ke si提示4:ai ke si 是拼音.提示5:没了...
X-25%X=1300-X+30
5.4x+x=12.8 x=?
150.5x -4x +0.5x =7
x+x²-x³=0
2x-1.8=x+2.4 x是多少?
2x+4(12-x)=36 2x+48-4x=362x+4(12-x)=362x+48-4x=3648-2x=36x=6
12x+20x(80-x)=112
12x+6x=12.6 x=几
X-20%X=48
若x³-4x-12x=x(x-6)(x+m).则m的值为?
多项式x^4+2x^3-4x^2-2x+3与x^3+4x^2+x-6的最大公因式是什么x^4+2x^3-4x^2-2x+3=(x^4+3x^3)-x(x^2+4x+3)+(x+3)=x^3(x+3)-x(x+1)(x+3)+(x+3)=(x+3)[x^3-x(x+1)+1]=(x+3)[x^3+1-x(x+1)]=(x+3)[(x+1)(
2x+4x=12
6.8+12÷x=10.8,14-0.5(x+3)=7.8,3.5x-3x-10=8,7.9-5x=7.8÷210x-20=6x,10+6x=8x,2(x+54)=8x,25-2x=5+2x
为什么sin(x+△x)-sinx= 2cos(x+x/x) sin △x/2