840-x+36=2(x-36)-18
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840-x+36=2(x-36)-18
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
解方程 式子 6-2x+3x=3x-4x+3x+18 6-x+3x=2x-5x+1 2x-1=5x-36-2x+3x=3x-4x+3x+18 6-x+3x=2x-5x+12x-1=5x-3
X^2-2X-4=0 X(X-7)=5X-36
初二数学整式题(x+4)(x+9)=x^2+mx+36(x-2)(x-18)=x^2+mx+36(x+3)(x+p)=x^2+mx+36(x-6)(x-p)=x^2+mx+36(x+p)(x+q)=x^2+mx+36p、q为正整数,求m
0.3x+7x-0.25x=21.58.7×(36-x)=04(不知道是x还是× 都解了吧)x或者×(x+0.2)=1.27(x+6)-3x=4x(2x+5)3(x+2)=4(x+1)18-4x=2x-63.8x+1.2x=256x+1.5x=15呼呼.累死我了 着急
10x -6.2x-2x=36 x=?
x+2x×10=10x+2x+36
解方程:(x+2)(x+2)-x*x=36
x*x+2*x+1=36,x怎么解,
解方程:6x(7-x)=36-2x(3x-5)x是字母x
(180x-36*x)/(x+2x)*2x=(180x-36*x)/(x+2x)*x+36x 这个怎么解啊····
求下列各式m的值 (1)(x+4)(x+9)=x²+mx+36(2)(x-2)(x-18)=x²+mx+36
解方程;3x(66-3x)=36 16x+6.7-4x=66.7 x+2x/4=18
[(x+6)/(x-6)][(x-4)/(x+4)]^2+[(x-6)/(x+6)][(x+9)/(x-9)]^2=2(x^2+36)/(x^2-36)
(x+x)*2+36=y (x+x)*4=y-36 二元一次方程,
.X²+13X+36 .X²+5X-20 .X²-2X-15 .8(X²+X)²-8(X²+X)+12
(10×2X)+X-(10X+2X)=36快