解方程:2(3-y)=5-4(y+5) (2x+1)/6+(x-1)/3=1     60%x-(x+3)*50%=3

来源:学生作业帮助网 编辑:六六作业网 时间:2024/12/27 01:04:18
解方程:2(3-y)=5-4(y+5)(2x+1)/6+(x-1)/3=1    60%x-(x+3)*50%=3解方程:2(3-y)=5-4(y+5)(2x+1)/6+(x-1)/3=1    60

解方程:2(3-y)=5-4(y+5) (2x+1)/6+(x-1)/3=1     60%x-(x+3)*50%=3
解方程:2(3-y)=5-4(y+5) (2x+1)/6+(x-1)/3=1     60%x-(x+3)*50%=3

解方程:2(3-y)=5-4(y+5) (2x+1)/6+(x-1)/3=1     60%x-(x+3)*50%=3
2(3-y)=5-4(y+5)
6-2y=5-4y-20
21=-2y
y=-10.5
(2x+1)/6+(x-1)/3=1
2x+1+2x-2=6
4x=7
x=7/4
60%x-(x+3)*50%=3
0.6x-0.5x-1.5=3
0.1x=1.5
x=15