解方程组.3(x-2)=2y+1.5(2y-1)=6(x-2)括号我就不大了.就是方程组.
问题描述:
解方程组.3(x-2)=2y+1.5(2y-1)=6(x-2)括号我就不大了.就是方程组.
答
3(x-2)=2y+1
6(x-2)=2(2y+1)
2(2y+1)=5(2y-1)
4y+2=10y-5
10y-4y=2+5
6y=7
y=7/6
3(x-2)=2x7/6+1
3(x-2)=10/3
x-2=10/9
x=2+10/9
x=28/9