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方程组:2(x+y)+3(x-y)=133(x+y)-2(x-y)=13{2(x+y)+3(x-y)=13{3(x+y)-2(x-y)=13

题目详情
方程组:2(x+y)+3(x-y)=13 3(x+y)-2(x-y)=13
{2(x+y)+3(x-y)=13
{3(x+y)-2(x-y)=13
▼优质解答
答案和解析
{2(x+y)+3(x-y)=13 ==>> 5x-y=13
{3(x+y)-2(x-y)=13 ==>>x+5y=13
x=3,y=2