求x+y/3+x-y/2=6 3(x+y)-2(x-y)=28方程组的解{ x+y/3+x-y/2=6{ 3(x+y)-2(x-y_数学解答

求x+y/3+x-y/2=6 3(x+y)-2(x-y)=28方程组的解
{ x+y/3+x-y/2=6
{ 3(x+y)-2(x-y)=28
求解

人气：198 ℃　时间：2019-10-11 01:13:39

解答

x+y/3+x-y/2=6
3(x+y)-2(x-y)=28
2x+2y+3x-3y=36
3x+3y-2x+2y=28
5x-y=36
x+5y=28
5x-y=36
5x+25y=140
26y=104
y=4
x=8