{x+y=50 6x+5y=264 {x+y=50 6x+4y=264 解方程,RT
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{x+y=506x+5y=264{x+y=506x+4y=264解方程,RT{x+y=506x+5y=264{x+y=506x+4y=264解方程,RT{x+y=506x+5y=264{x+y=506
{x+y=50 6x+5y=264 {x+y=50 6x+4y=264 解方程,RT
{x+y=50 6x+5y=264 {x+y=50 6x+4y=264 解方程,
RT
{x+y=50 6x+5y=264 {x+y=50 6x+4y=264 解方程,RT
x+y=50 (1)6x+5y=264(2)
(1)*6-(2)得:y=300-264=36
(2)-(1)*5得;x=264-250=14
所以有x=14,y=36
x+y=50(1) 6x+4y=264 (2)
(1)*6-(2)得:2y=300-264,y=18
(2)-(1)*4得:2x=264-200,x=32
所以有x=32,y=18
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x+y=50 6x+5y=264
y=50-x代入得y=46 x=14
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y=-6/x (x
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(X-Y)(X+Y)=5 能解么
5x-4y(y-x)=?
y=x(x