5x=40+56+4(x-13)

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5x=40+56+4(x-13)
(16x-13)/(4x-3)-(20x-24)/(4x-5)=(32x-30)/(8x-7)-(40x-43)/(8x-9)求x

(16x-13)/(4x-3)-(20x-24)/(4x-5)=(32x-30)/(8x-7)-(40x-43)/(8x-9)求x(16x-13)/(4x-3)-(20x-24)/(4x-5)=(32

1、1/2x=2/x+32、x/x+1=(2x/3x+3)+13、2/x-1=4/x²-14、5/x²+x-1/x²-x=0

1、1/2x=2/x+32、x/x+1=(2x/3x+3)+13、2/x-1=4/x²-14、5/x²+x-1/x²-x=01、1/2x=2/x+32、x/x+1=(2x

方程 3x(7-2x)+5x(2x-1)=4x(x-3)+56

方程3x(7-2x)+5x(2x-1)=4x(x-3)+56方程3x(7-2x)+5x(2x-1)=4x(x-3)+56方程3x(7-2x)+5x(2x-1)=4x(x-3)+56你那是3乘啊还是3X

40-x=4(x+5)

40-x=4(x+5)40-x=4(x+5)40-x=4(x+5)40-x=4x+205x=20x=4解方程吗!展开40-X=4X+20解得X=44

4(X+5)+X=80 5X+10=3X+4(X+5)+X=80 5X+10=3X+40

4(X+5)+X=805X+10=3X+4(X+5)+X=805X+10=3X+404(X+5)+X=805X+10=3X+4(X+5)+X=805X+10=3X+404(X+5)+X=805X+10

(16x-13)/(4x-3)+(40x-43)/(8x-9)=(32x-30)/(8x-7)+(20x-24)/(4x-5)....

(16x-13)/(4x-3)+(40x-43)/(8x-9)=(32x-30)/(8x-7)+(20x-24)/(4x-5)....(16x-13)/(4x-3)+(40x-43)/(8x-9)=(

(16x-13)/(4x-3)+(40x-43)/(8x-9)=(32x-30)/(8x-7)+(20x-24)/(4x-5)

(16x-13)/(4x-3)+(40x-43)/(8x-9)=(32x-30)/(8x-7)+(20x-24)/(4x-5)(16x-13)/(4x-3)+(40x-43)/(8x-9)=(32x-

4.2-0.6x=3.6x 5x+2x=33.6 7x-4x=0.75 2x+7x+2.1=12 56x-32x-119=361 x+5=2x 3x+9=6x 4x-28=2x 2x+18=7x 5x=25*4-15x 7x-x+2*3=29.4 (28.8+5.5x+3.2)除2=71

4.2-0.6x=3.6x5x+2x=33.67x-4x=0.752x+7x+2.1=1256x-32x-119=361x+5=2x3x+9=6x4x-28=2x2x+18=7x5x=25*4-15x

3/x-1=4/x 6/x+1=x+5/x(x+1)

3/x-1=4/x6/x+1=x+5/x(x+1)3/x-1=4/x6/x+1=x+5/x(x+1)3/x-1=4/x6/x+1=x+5/x(x+1)3/x-1=4/x1/x=-1x=-16/(x+1

60%x+25=40 x+30%x=52 19-120%x=7 4分之3x-5%x=17.5 x-10%x=18 (1-25%)x=36 2x+30%x=9.2

60%x+25=40x+30%x=5219-120%x=74分之3x-5%x=17.5x-10%x=18(1-25%)x=362x+30%x=9.260%x+25=40x+30%x=5219-120%

1x+2x+3x+4x+5x+6x+7x+8x+9x+10x+11x+12x+13x+14x+15x=550必须用解方程

1x+2x+3x+4x+5x+6x+7x+8x+9x+10x+11x+12x+13x+14x+15x=550必须用解方程1x+2x+3x+4x+5x+6x+7x+8x+9x+10x+11x+12x+1

1/4x+5+1/2【x-(1/4x+5)】-5+40=x

1/4x+5+1/2【x-(1/4x+5)】-5+40=x1/4x+5+1/2【x-(1/4x+5)】-5+40=x1/4x+5+1/2【x-(1/4x+5)】-5+40=x1/4x+5+1/2【x-

(x+1)(x+2)(x-4)(x-5)=40

(x+1)(x+2)(x-4)(x-5)=40(x+1)(x+2)(x-4)(x-5)=40(x+1)(x+2)(x-4)(x-5)=40左侧常数=1*2*(-4)*(-5)=40=右侧所以常数刚好消

下列各式正确的是:( ) A.4x²+8x+3=(2x-3)(2x-1) B.4x²-13x+3=(x-3)(4x+1)C.6x²+7x-10=(6x-5)(x+2) D.6x²+13x-10=(2x+5)(3x-2)

下列各式正确的是:()A.4x²+8x+3=(2x-3)(2x-1)B.4x²-13x+3=(x-3)(4x+1)C.6x²+7x-10=(6x-5)(x+2)D.6x&