① （x-5)/8+40=（x-5)/6② x+（3x+1）+(x/2 -1)=180

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① （x-5)/8+40=（x-5)/6② x+（3x+1）+(x/2 -1)=180
① （x-5)/8+40=（x-5)/6
② x+（3x+1）+(x/2 -1)=180

① （x-5)/8+40=（x-5)/6② x+（3x+1）+(x/2 -1)=180
1.两边通分,同乘以48,得
6(x-5)+40*48=8(x-5)
2(x-5)=40*48
x-5=960,所以x=965
2.归纳同类项,得4x+x/2=180,两边同乘以2,得：8x+x=360,x=40

（x-5)/8+40=（x-5)/6
=>(x-5)/6-(x-5)/8=40
=>(x-5)/24=40
=>x-5=960
=>x=965
x+(3x+1)+(x/2-1)=180
=>2x+6x+x+2-2=360
=>9x=360
=>x=40

*-----------------------------------------------*| 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+2x+3x+4x+5x+6x+7x+8x+9x=9x-8x-7x-6x-5x-4x-3x-2x-x.x等于多少? 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 x-4/x-5 - x-5/x-6=x-7/x-8 - x-8/x-9求x=? (x+7/x+6) +(x+9/x+8)=9x=(x+10/x+9) +(x+6/x+5) x+2/x+1-x+4/x+3=x+6/x+5-x+8/x+7 x=? (x+8)(x+6)(x+7)+(x+5)(x+6)(x+7)=(x+5)(x+8)(x+7)+(x+5)(x+8)(x+6) ① （x-5)/8+40=（x-5)/6② x+（3x+1）+(x/2 -1)=180 1+x+x^2+x^3+x^4+x^5+x^6+x^7+x^8+x^9+x^10+x^11+x^12=97.8x+x^2+x^3+x^4+x^5+x^6+x^7+x^8+x^9+x^10+x^11+x^12=97.8 好多年没有用过过数学公式了想不起来怎么算了想知道 X值是多少解分式方程：(x-4)/(x-5)+(x-8)/(x-9)=(x-7)/(x-8)+(x-5)/( x-6) 解方程:x-4/x-5 -x-5/x-6=x-7/x-8 -x-8/x-9 x-4/x-5-x-7/-x-8=x-5/x-6-x-8/x-9 解方程：(x-4)/(x-5)-(x-5)/(x-6)=(x-7)/(x-8)-(x-8)/(x-9) 解分式方程（X-4)/(X-5)-(X-5)/(X-6)=(X-7)/(X-8)-(X-8)/(X-9) 求方程解x-5/x-4+x-9/x-8=x-8/x-7+x-6/x-5 x-4／x-5-x-5／x-6=x-7／x-8-x-8／x-9求大神帮助解因式方程：x-4/x-5+x-8/x-9=x-7/x-8+x-5/x-6 解方程(x-4)/(x-5)+(x-8)/(x-9)=(x-7)/(x-8)+(x-5)/(x-6)