7+(x一1)×1=(x÷2)×2+(x÷2)×1.5 解方程

求一个数独答案X X X 9 X X X 8 2 X 6 3 X X 1 4 X 99 X 8 X X X X X XX X X 6 7 X 3 X XX 4 6 X 5 X 2 9 XX X 7 X 2 3 X X XX X X X X X 7 X 17 X 4 3 X X 6 2 X6 3 X X X 7 X X X *-----------------------------------------------*| 6 4 X | 8 X X | X X 5 || X X X | X X X | X 7 8 || X X X | X X X | X X X ||---------------+---------------+--------------- || X X X | X X X | 5 1 X || X X X | X 6 X | X X X || 8 X X | 3 5 X | 2 X X || x/x-2+x-9/x-7=x+1/x-1+x-8/x-6, x/x-2+x-9/x-7=x+1/x-1+x-8/x-6, 4(2x一7)一2(x一1)=3(x一1)一2 x=? 4(2X一9)+3(X一15)=7(X一1)一2 填九宫格帮帮忙.x x 6 x x 7 x x 98 x x x 3 x 1 x x 9 x x 6 x 5 x 3 x x x 3 x x x x 1 8x x x 9 x 1 x x x2 1 x x x x 6 x x x 6 x 7 x 3 x x 1 x x 9 x 2 x x x 47 x x 8 x x 5 x x 解方程7X一2/1[x一2/1(X一1)]=3/2(x一1) 计算：(2x一1)^2一(x^5一4x^4)÷x^3 解方程:2x(x一1)一x(2x一5)=12 x一2x=2x十1 方程 4X+2=5X一1 X=? 7+(x一1)×1=(x÷2)×2+(x÷2)×1.5 解方程 x+2/x+1-x+4/x+3=x+6/x+5-x+8/x+7 x=? (x+1)/(x+2)+(x+8)/(x+9)解答x+1/x+2+x+8/x+9=x+2/x+3+x+7/x+8 2x一1/3(x+1)=4x一(2X十1/2) 解分式方程,2/(x十1)=x/(x一1)一X （2x一1)=x(3x+2)一7解方程