x+x+2x+2x+3x+4x=39
4个回答
(1+1+2+2+3+4)x=39
13x=39
x=39/13
x=3
相关问题
{3x+4y=39-2y 5x+3y=2x+30
1-2x=x 2x+5=3x-39x=7x-68y=4y-1若x/-2=2y/3,则x=( )y3-1/3 x =4两边
2y+3x=28 4x+3y=39
解方程:2x(7-2x)+5x(8-x)=3x(5-3x)-39.
解方程:(x+3)(x+5)-x(x+2)等于39
如何解一元三次方程?f(x)=x^3-4X+x-4 ,f(x)=x^3+11x^2+39x+29 ,f(x)=x^3+1
X-3+4X-3=39
2分之x+x+2x+2分之x+2分之3x+x=39怎么解
x1+5x2+2x3-4x4=3 -3x1-2x2+3x3+4x4=-6 -x1+3x2-x3-4x4=-2 -2x1+
{4x-3y=39,.1 7x+4y=-15.2