17*(2-3x)-5*(12-x)=8*(17-x)解答
7x-11=9x+4-3x怎么解答 3-5x-12=7-4x怎么解答 4x+9-8x=6-5x怎么解答
(2x^-5x+2/6x^+13x+6)*(6x^-5x-6/6x^-17x+10)*(12x^+8x-15/2x^-x
2- 4/3x-7 =-5/x+17 用一元一次方程解答~~
7x-14=5x+9 3x-12=5x-20 56x=42(x+2)用方程解答(五年级的)
1x+2x+3x+4x+5x+6x+7x+8x+9x+10x+11x+12x+13x+14x+15x=550
有一道题"先化解,在求值:17x*x-(8x*x+5x)-(4x*x+x-3)+(-5x*x+6x-1)-3,其中x=2
x+2x+3x+4x+5x+6x+7x+8x+9x=9x-8x-7x-6x-5x-4x-3x-2x-x.x等于多少?
15x=23x-24 12+5x=3x-8 3(x-3)=9-(x+6)解 4+x=4x-17解
解方程3x-10/x-3 +4x-5/x-1=6x-17/2x-5 +8x-14/2x-3
3x-10/x-3 +4x-5/x-1=6x-17/2x-5 +8x-14/2x-3
(x+12)(x-2)+(x+7)(x+8)-(x+5)(x-10),其中x=2
解方程:x(x的平方-2)+2x的平方(x+3)-3x(5x-7)=x(3x的平方-9x+17)+2