解方程:4x+9=249 y+2y=45 6x-x=125 3y-6=48 x-360=312 m÷0.6=4.5
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解方程:4x+9=249 y+2y=45 6x-x=125 3y-6=48 x-360=312 m÷0.6=4.5
![解方程:4x+9=249 y+2y=45 6x-x=125 3y-6=48 x-360=312 m÷0.6=4.5](/uploads/image/z/4254267-3-7.jpg?t=%E8%A7%A3%E6%96%B9%E7%A8%8B%EF%BC%9A4x%2B9%3D249+y%2B2y%3D45+6x-x%3D125+3y-6%3D48+x-360%3D312+m%C3%B70.6%3D4.5)
4x+9=249
4x=240
x=60
y+2y=45
3y=45
y=15
6x-x=125
5x=125
x=25
3y-6=48
3y=54
y=18
x-360=312
x=360+312
x=672
m÷0.6=4.5
m=0.6*4.5
m=2.7
4x=240
x=60
y+2y=45
3y=45
y=15
6x-x=125
5x=125
x=25
3y-6=48
3y=54
y=18
x-360=312
x=360+312
x=672
m÷0.6=4.5
m=0.6*4.5
m=2.7
解方程:4x+9=249 y+2y=45 6x-x=125 3y-6=48 x-360=312 m÷0.6=4.5
m除以0.6=4.5 y+2y=45 x-360=312 6x-x-125 解方程
{4/(x+y)+6/(x-y)=3 {9/(x-y)-1/(x+y)=1
{3(x+y)-4(x-y)=4 {x+y/2 + x-y/6=1
x+y/2+x-y/3=6,4(x+y)-3(x-y)=-20
{(x+y)/2+(x-y)/3=6 4(x+y)-3(x-y)=-20
4(x+y)-3(x-y)=-20,2/x+y+3/x-y=6
解方程(1)x-360=312(2)y+2y=45(3)6x-x=125(4)m÷0.6=4.5.
解方程{2x-y=6 (x+2y)(2x-y)=96
解方程:2x-x=4 5y+y=96 4m-2m=48 3m+2m=65 x+3x=72 y+y=33 5x-2x=12
解方程x+y+(x+y/2)=15 3x+5y+4(x+y/2)=62
【2(x-y)^3-8(x-y)^2(x+y)+6y(x-y)^2】/2(x-y)^2=