解方程7x-4x÷2=4.3

解方程7x-4x÷2=4.3 解方程：x(3x-4)+2x(x+7)=5x(x-7)+90 5x(x+7)(x+4)=5x(x^2+11X)解方程, 解方程(x²-x+4)x-(x-1)(x²+2)=x+7 解方程 x+2/x+1+x+8/x+7=x+6/x+5+x+4/x+3 解方程：（x-8）/(x-3)-(x-9)/(x-4)=(x+7)/(x+8)-(x+2)/(x+3) 解方程(x-2)/(x-3)-(x-3)/(x-4)=(x-5)/(x-6)-(x-6)/(x-7) 解方程 (x+2)/(x+1) - (x+4)/(x+3)=(x+6)/(x+5)-(x+8)/(x+7) x÷4=11解方程.5x-17=73解方程.6.1-x=4.5解方程.4x+16=100解方程.(x+2)÷5=6.2解方程.4x+7x=12.1解方程.5x-2.1×4=11.6解方程.8x-3x=3.5解方程. 解方程；x/x-4=5x/x-2 解方程：x(x-4)=(x-2)(x-6) 解方程：(x+5)(x-4)+(4-x)^2-(x-4)(2x-7)=16 7x(x-6)+3x=4x(2x+5)怎么解这个方程 (x-3)(x+8)=(x+4)(x-7)+2(x+5)解方程, (x-2)(x+1)(x+4)(x+7)=19 解方程(x-2)(x+1)(x+4)(x+7)=19解方程 解方程】(x+8)/(x-3)-(x-9)/(x-4)=(x+7)/(x+8)-(x+2)/(x+3)(x+8)/(x-3)-(x-9)/(x-4)=(x+7)/(x+8)-(x+2)/(x+3) 解方程】(x+8)/(x-3)-(x-9)/(x-4)=(x+7)/(x+8)-(x+2)/(x+3)(x+8)/(x-3)-(x-9)/(x-4)=(x+7)/(x+8)-(x+2)/(x+3) x^2=-4x 解方程