{3x+4y=39-2y 5x+3y=2x+30
2个回答
{3x+4y=39-2y
{5x+3y=2x+30
{3x+6y=39
{3x+3y=30
{x+2y=13
{x+y=10
y=3
x=7
所以方程组的解是:
{x=7
{y=3
相关问题
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