寒樱暖暖为你
由已知得3(X-1)=0且Y-5=0
即:X=1,Y=5
所以
5x+6y-4x-8y
=X -2Y
=1-10
=-9
(或在客户端右上角评价点【满意】)
是我前进的动力!你的采纳也会给你带去财富值的.
如有不明白,
直到完成弄懂此题!
已知3(x-1)平方十|y-5丨=0则5x+6y-4x-8y=多少
已知3(x-1)平方十|y-5丨=0则5x+6y-4x-8y=多少
其他人气:526 ℃时间:2019-10-31 08:56:55
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