b-2=1, b=3
a=2
a+b=5
或者加入y是自变量
a=1
b-2=2, b=4
a+b=5
或者
a+(b-2)=3
a+b=5
如果x的a次方-2y的b-2次方=-3是二元一次方程,那么a+b=?
如果x的a次方-2y的b-2次方=-3是二元一次方程,那么a+b=?
数学人气：169 ℃时间：2020-03-17 23:45:05
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