解方程:2/7(X-7)=2-2/3X.
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解方程:2/7(X-7)=2-2/3X.
2/7x-2=2-2/3*x
(2/7+2/3)*x=4
20/21*x=4
x=4*21/20
x=21/5
(2/7+2/3)*x=4
20/21*x=4
x=4*21/20
x=21/5
解方程:(x-8)/(x-3)-(x-9)/(x-4)=(x+7)/(x+8)-(x+2)/(x+3)
解方程:2(X-3)(X+5)=X平方+(X+2)(X-2)+(X+7)
解方程:7x-2x+3x=36
解方程7x-2x+3x=36
7x(x-6)=2x解方程
解方程(x+1/x+2)-(x+2/x+3)=(x+5/x+6)-(x+6/x+7)
解方程:x+2/x+1-x+3/x+2=x+6/x+5-x+7/x+6
解方程(x-2)/(x-3)-(x-3)/(x-4)=(x-5)/(x-6)-(x-6)/(x-7)
解方程】(x+8)/(x-3)-(x-9)/(x-4)=(x+7)/(x+8)-(x+2)/(x+3)
解方程:(x+3)/(x+2)-(x+5)/(x+4)=(x+7)/(x+6)-(x+9)/(x+8)
解方程 x+2/x+1+x+8/x+7=x+6/x+5+x+4/x+3
解方程:(2x-3)(x+1)-x(x-7)=(x-3)(x+2)