(400000-X)*5.6% X*6.45%=24950 解得X为300000
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![(400000-X)*5.6% X*6.45%=24950 解得X为300000](/uploads/image/f/12243-3-3.jpg?t=%28400000-X%29%2A5.6%25+X%2A6.45%25%3D24950+%E8%A7%A3%E5%BE%97X%E4%B8%BA300000)
4×2.6-5x=8.410.4-5x=8.45x=10.4-8.45x=2x=0.417.28-4x=5.6x17.28=5.6x+4x17.28=9.6xx=17.28÷9.6x=1.82(4x-
展开式的通项为Tr+1=(−12)rCr10x30−5r令30-5r=0得r=6故展开式的常数项为(−12)6C610=10532故答案为10532
6.45x+5.6(40-x)=249.56.45x-5.6x+224=249.50.85x=25.5x=25.5/0.85x=30再问:题中224怎摸来的再答:5.6*40=224再问:某工厂向银行
1、2.7x=8.1x=8.1÷2.7x=32、x=10.4-1.6x=8.83、0.64x=1.6x=1.6÷0.64x=2.54、x-26=20x=26+20x=465、2x=5.6-42x=1.
9.5x-3x=5.6+7.4(9.5-3)x=136.5x=13x=13/6.5=2
|x|
x
5x+2x+x=5.68x=5.6x=5.6÷8x=0.7
9.6X=17.28X=1.8
x+3x=1484x=148x=3715x-8x=5.67x=5.6x=0.86x-x=965x=96x=96/5x=19又1/52除以x=0.50.5x=2(两边同时×10)5x=20x=43x+3
25%x=200x=200/25%x=800x+35%x=540x(1+35%)=540x=540/1.35x=400x-0.78%x=8.822%x=8.8x=4048%x-12%x=3636%x=
60-X=34.5+4X5x=25.5x=5.15.6X+4X=17.289.6x=17.28x=1.812(X-2)=3.6x-2=0.3x=2.3
0.25x=5.6(合并同类项)x=5.6/0.25(移项)x=22.4望采纳!
5.6X=17.28-4X5.6X+4X=17.289.6X=17.28X=17.28÷9.6x=1.8再问:15X+3.8乘12=87.6希望你能帮我再答:你好!15x+3.8×12=87.615X
x乘以2x=400000;2x²=400000;x²=200000;x=±200√5;手机提问的朋友在客户端右上角评价点【满意】即可.
X=60~~~~~~~~~
x-0.6x=5.6(1-0.6)x=5.60.4x=5.6x=5.6÷0.4x=14
5.6x-5x=3.6(5.6-5)x=3.60.6x=3.6x=6
解题思路:同学你好,本题利用同角三角函数的基本关系求解,具体过程见解析解题过程: