40x+40(2x+11)=3200 怎么解?
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40x+40(2x+11)=3200 怎么解?
40x+40(2x+11)=3200 怎么解?
40x+40(2x+11)=3200 怎么解?
两边同除以40,有:
x+2x+11=80
3x=69
x=23
把40乘进去
40x+80x+440=3200
移项,合并
120x=2760
x=23
40x+40(2x+11)=3200
40x+80x+440=3200
120x=2760
x=23
两边同时除以40,得x+2x+11=80
两边同时减去11,得3x=69
两边同时除以3, 得x=23
40x+40(2x+11)=3200
两边同除以40,得
x+2x+11=80
3x=69
x=23
解分式方程:1/X-2+1/X-6=1/X-7+1/X-11/X-2+1/X-6=1/X-7+1/X-11/(x-2)-1/(x-1)=1/(x-7)-1/(x-6)(x-1-x+2)/(x-2)(x-1)=(x-6-x+7)/(x-7)(x-6)1/(x-2)(x-1)=1/(x-7)(x-6)(x-2)(x-1)=(x-7)(x-6)x^2-3x+2=x^2-13x+4213x-3x=42-210x=40x=4 为什么要移向才能解
x+40=2x x=?
方程:40X+40(2X+11)=3200
40x+40(2x+11)=3200 怎么解?
x-40%x=
x{x+1}{x-1}}x-2}{x-3}-40
x^2-14x+40=0 x^2-8x+16=0 X^2-11=0
(35-X)*(40-2X)+40X+2X*(35-X)=35*40
11(6-x)/3(x-4)=10(5-x)/3(x-4)-5(6-x)/(x-2)(16x-13)/(4x-3)-(20x-24)/(4x-5)=(32x-30)/(8x-7)-(40x-43)/(8x-9)求x(包括增根)
x(x+40)=3200如何解
20/(x-20)=(2x-40)/(x+40)
x^3 - 13x^2 + 40x - 40 =0
已知x*x+x-1=0 求x*x*x-2x+11=?
x-40%x-40%x=15
x(40-2x)=200 x=?
2x/40%=x+20x=?
2(15+2x)x+40x=246
X-40%X+1200=2/3X怎么算